Planting Zones Map - Find Your Plant Hardiness Growing Zone (2023)

What You’ll Learn:

  • What Are Planting Zones?
  • What Planting Zone Am I In?
  • What is Plant Hardiness?
  • Breakdown of Plant Hardiness Zones

What Are Planting Zones?

Planting zones are areas you can find on a growing zone map that show exactly which plants are best suited to thrive in your given area, or zone. When shopping for new plants for your garden landscape, the terms “plant hardiness zones,” “growing zones” and “planting zones” may at first seem a bit confusing. In essence, plant hardiness zones have been used by growers for years to simply identify the plants that are most likely to survive the winter in their area. Being able to understand a hardiness zone map means you’ll have a starting point for making wise planting decisions.

Temperature Range for Planting Zones

Planting Zones Map - Find Your Plant Hardiness Growing Zone (1)

Planting zones are broken down into thirteen areas, also known as USDA zones, which cover the entire United States, including Hawaii, Alaska and Puerto Rico. Each agricultural zone covers a 10-degree range. Zone 1 is the coldest, with an average minimum winter temperature of -60 to -50 degrees F, while the minimum winter average temperature in Zone 13 is 60 to 70 degrees F.

What Planting Zone Am I In?

Understanding gardening zones means you can focus your time and attention (not to mention money) on plants with the best chance of winter survival. Gilmour’s Interactive U.S. Planting Zone Map for 2019 combines data from the USDA with specific geographical information to provide a complete look at your growing area. Each of the 13 zones on our interactive planting zone map is broken down into two parts to give 5-degree increments in each zone. By asking what zone am I in and using an interactive growing zone map like ours, you may be pleasantly surprised, ultimately discovering you can grow many plants you might not have even considered!

Instead of simply assuming you are in a certain zone and thinking you already know what grows best, click on the major metros near you to see detailed information specific to your exact area. Individual zones are no longer simply just bands that go across the country. Detailed sections are now based on multiple factors.

Click on your state to reveal a basic overview, including the state flower, a list of major metro areas, gardening zones and an overview of climate. By clicking your closest metro area, you’ll find even more detailed information to help make your gardening decisions.

At the metro level, you’ll be able to access:

Planting Zones Map - Find Your Plant Hardiness Growing Zone (2)

What is Plant Hardiness?

Plant hardiness is the ability of a plant to survive adverse growing climates such as drought, flooding, heat and cold. The science behind plant hardiness can be complicated. Plant genetics determine the ability of a plant to withstand cold temperatures without damage. Each cultivar of a plant may have different hardiness levels based on their adaptations and genetics. Even different parts of a plant may be hardy in different ways. For example, the cold may cause your beloved perennial to die; however, the roots might be hardy enough to bring new growth in the spring.

Many plants require very specific growing environments to thrive. You can adjust many things, such as soil type, moisture levels and amount of sunlight in your garden, but temperature can be hard to control. Choosing plants with hardiness levels appropriate to specific planting zones gives you the best chance of gardening and landscaping success.

Breakdown of Plant Hardiness Zones

In the simplest terms, USDA hardiness zones keep a grower in Alaska from making the mistake of planting peach trees. Understanding the different plant hardiness zones gives you the ability to narrow down your gardening choices. Keep in mind, when a plant is hardy to a specific zone, it will usually perform well at any zone number that’s higher as well. For example, most plants hardy to Zone 3 will perform well in Zone 7, as long as other plant requirements are met. Use the information about individual growing zones as a starting point for planning what to plant in your garden. Scroll to read more about each hardiness planting zone or jump directly to your zone using the links below:

Zone 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 | Zone 6 | Zone 7 | Zone 8 | Zone 9 | Zone 10 | Zone 11 | Zone 12

Planting Zone 1

USDA Plant Hardiness Zone 1 is the coldest zone designation for the United States. With minimum average temperatures between -60 to -50 degrees F, it can be a difficult zone for gardening. The majority of Zone 1 is located in Alaska. This tundra environment is extremely harsh and plants must have extreme cold hardiness and drought tolerance.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (3)

Temperature in Zone 1

Zone 1 can expect minimum average temperatures of -60 to -50 degrees F
Zone 1a has a minimum average temperature of -60 to -55 degrees F
Zone 1b has a minimum average temperature of -55 to -50 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 1?

Planting in Zone 1 can be quite challenging. Plants able to withstand the tundra are rare. Native plants have already adapted to the area, so it makes sense that they’re a natural, excellent choice. Annuals are also a popular option, since they don’t need to survive the winter. While there are relatively few non-native perennials suitable for Zone 1, some can be grown with proper planting and care.

Vegetables to Grow in Zone 1

Because most vegetables are grown as annuals, you don’t have to consider the cold hardiness of the vegetables as much as the length of the growing season. Giving plants a head start indoors or in a greenhouse typically results in better success for Zone 1 vegetables.

Popular Zone 1 vegetables include:

  • Beans
  • Broccoli
  • Cabbage
  • Kale
  • Lettuce
  • Potatoes
  • Radish
  • Spinach
  • Sweet Peas
  • Tomatoes

Fruit Trees to Grow in Zone 1

Very few fruit trees are hardy enough to survive the extreme cold of Zone 1. Given the correct conditions, however, the following may be able to thrive:

  • Chokecherry
  • End apple
  • Fort Mac Mac apple
  • Haskap
  • September Ruby apple

Herbs to Grow in Zone 1

Almost any herb can be grown as an annual in Zone 1. Consider planting these as annual herbs:

  • Basil
  • Chives
  • Mint
  • Oregano
  • Rosemary
  • Thyme

Flowers to Grow in Zone 1

Flowers for Zone 1 should be drought-tolerant and tremendously cold hardy. The most popular growing choices include:

  • Arrowhead
  • Delphinium
  • Goldenrod
  • Sunflower
  • Lily of the Valley
  • Oxeye Daisy
  • Yarrow

Planting Zone 2

Located in both Alaska and the continental United States, planting Zone 2 features extremely cold average minimum temperatures of between -50 to -40 degrees F. These temperatures can present a growing challenge to many gardeners. High winds and drought conditions are found in both the tundra and plains of Zone 2. Planting native plants, growing annuals and using creative planting techniques give gardeners a growing advantage.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (4)

Temperature in Zone 2

Zone 2 can expect minimum average temperatures of -50 to -40 degrees F
Zone 2a has a minimum average temperature of -50 to -45 degrees F
Zone 2b has a minimum average temperature of -45 to -40 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

(Video) Find Your Plant Hardiness Zone | Backyard Smart: Know Your Zone | YouTube

What Plants Can I Grow in Zone 2?

Plants in Zone 2 must be able to withstand extreme cold and high levels of drought. Native plants are best adapted to the environment. Annuals are best suited for this zone, but some perennials can be grown when chosen carefully.

Vegetables to Grow in Zone 2

There are very few perennial vegetables able to withstand the extreme cold of Zone 2. Although, with added protection, it can be possible to grow asparagus as a perennial. Look for annual vegetables with a short growing season for the best results. In addition to Zone 1 vegetables, consider planting:

  • Carrots
  • Mustard greens
  • Onions
  • Parsnips
  • Swiss chard

Fruit Trees to Grow in Zone 2

There are a few options for fruit trees in Zone 2. Carefully considering the planting location will help ensure success. Zone 2 hardy fruit varieties include:

  • Brookgold plum
  • Fall Red apple
  • Fofonoff plum
  • Garrington Chokecherry
  • Korean pine
  • Minnesota 1734 apple
  • Norkent apple
  • Parkland apple
  • Pembina plum

Herbs to Grow in Zone 2

Zone 2 is ideal for growing annual herbs, either replanted or from self-sowing plants. The following herbs are considered cold hardy for Zone 2:

  • Hyssop
  • Juniper
  • Turkestan Rose

Flowers to Grow in Zone 2

Native plants are your best option for tender perennials in Zone 2. However, many gardeners have success by matching plants from similar environments. Consider planting:

  • Bleeding Heart
  • Monkshood
  • Penstemon
  • Poppy
  • Primrose
  • Sea Holly
  • Violet

Planting Zone 3

Plant hardiness Zone 3 is found throughout Alaska, the northern portions of the United States and in high altitude areas. This zone features minimum average temperatures of -40 to -30 degrees F. Depending on the geographical location of your growing space, high winds, extreme cold and low moisture may affect growing conditions.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (5)

Temperature in Zone 3

Zone 3 can expect minimum average temperatures of -40 to -30 degrees F
Zone 3a has a minimum average temperature of -40 to -35 degrees F
Zone 3b has a minimum average temperature of -35 to -30 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 3?

The cold minimum average temperatures in Zone 3 limits plant choices to those that have adapted to low temperatures. Most native plants can be grown across the zone, regardless of altitude, as long as growing conditions are similar. The short growing season limits vegetable and flowering annuals, but you can extend the growing season by starting plants indoors or purchasing from a greenhouse.

Vegetables to Grow in Zone 3

The short growing season, combined with low soil temperatures, limits vegetable gardens in Zone 3. Adding row covers can help extend the growing season and warm the ground. Plant vegetables that quickly mature to beat early frosts. In addition to Zone 1 and 2 hardy plants, consider planting:

  • Asparagus
  • Celery
  • Cucumbers
  • Summer squash
  • Winter squash

Fruit Trees to Grow in Zone 3

There are many trees well suited to Zone 3. Popular fruit tree options include:

  • Cupid cherry
  • Dolgo crabapple
  • Early Gold pear
  • Evans cherry
  • Golden Spice pear
  • Goodland apple
  • Sweet Sixteen apple
  • Toka plum
  • Waneta plum
  • Westcot apricot

Herbs to Grow in Zone 3

In addition to annual herbs, herbs hardy enough for Zone 3 include:

  • Caraway
  • Catnip
  • English chamomile
  • French sorrel
  • Garlic
  • Horseradish
  • Parsley
  • Peppermint

Flowers to Grow in Zone 3

There are a number of flowers hardy enough to withstand the cold temperatures of Zone 3. Popular choices include:

  • Alpine Rockcress
  • Aster
  • Blanket Flower
  • Liatris varieties
  • Salvia
  • Snow-in-Summer
  • Spurge
  • Virginia Bluebells
  • Wallflower

Planting Zone 4

Planting Zone 4 covers the southern coastal areas of Alaska, northern areas of the United States and high elevations found in the western mountains. These unique climates share minimum average temperatures of between -30 to -20 degrees F. Planting in this zone is less challenging than in colder zones, but the short growing season impacts both vegetables and flower bloom times.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (6)

Temperature in Zone 4

Zone 4 can expect minimum average temperatures of -30 to -20 degrees F
Zone 4a has a minimum average temperature of -30 to -25 degrees F
Zone 4b has a minimum average temperature of -25 to -20 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 4?

Zone 4 is considered a cool climate suitable for growing plants hardy enough to withstand temperatures well below freezing. To combat the typically short growing season, gardeners can get a head start by starting plants indoors or purchasing starts from a greenhouse. Adding a good layer of mulch and taking preventative winter measures can help some plants survive the cold winters.

Vegetables to Grow in Zone 4

As a perennial vegetable, rhubarb is hardy to Zone 4. If started indoors, you can also add the following plants to your vegetable gardens:

  • Eggplant
  • Melons
  • Okra
  • Pumpkins

Fruit Trees to Grow in Zone 4

There are many cold hardy fruit trees appropriate for planting in Zone 4, including:

  • Alderman plum
  • Alexander apple
  • Buartnut
  • Butternut
  • Ewing blue plum
  • Nova pear
  • Railroad apple
  • Summercrisp pear
  • Trent apple

Herbs to Grow in Zone 4

Many herbs become hardy to Zone 4 with nothing more than an application of mulch during the winter months, including:

  • Angelica
  • Bee balm
  • Garden sage
  • Lemon balm
  • Mountain mint
  • Thyme
  • Winter savory

Flowers to Grow in Zone 4

There are several perennial flowers native to Zone 4 areas that are hardy even in the coldest of winters. If you’re planning for Zone 4, consider these flowers:

  • Coneflower
  • Daylily
  • Iris
  • Phlox
  • Plantain lily (Hostas)

Planting Zone 5

Plant hardiness Zone 5 includes the southern coastal region of Alaska, the North Central United States and portions of New England. With minimum average temperatures between -20 and -10 degrees F, this zone experiences a moderately cold winter. While the growing season is short, you can extend it by using cold frames or using started plants in your annual garden.

(Video) US Plant Zones: Explained // Garden Answer

Planting Zones Map - Find Your Plant Hardiness Growing Zone (7)

Temperature in Zone 5

Zone 5 can expect minimum average temperatures of -20 to -10 degrees F
Zone 5a has a minimum average temperature of -20 to -15 degrees F
Zone 5b has a minimum average temperature of -15 to -10 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 5?

Zone 5 gardens feature a wide range of environments. From coastal waters and woodlands to the wide plains of the Midwest, plants should not only be cold hardy, but they also need to match the growing environment. Gardens feature longer growing seasons that result in an increased vegetable harvest and extended blooms in landscaping.

Vegetables to Grow in Zone 5

Raised beds and row covers help to warm the soil in Zone 5 for a longer growing season. After spring greens are planted, fast-maturing crops are then planted. Depending on your area, some cool season vegetables may be repeated in late summer for a fall harvest, including:

  • Kale
  • Lettuce
  • Radishes
  • Spinach
  • Winter greens

Fruit Trees to Grow in Zone 5

Many fruit trees are hardy to Zone 5, including:

  • Harrow Delight pear
  • Honeycrisp apple
  • Native pawpaw trees
  • Pink Lady apple
  • Snow Beauty peach
  • Superior plum
  • Warren pear

Herbs to Grow in Zone 5

Perennial herbs hardy for Zone 5 gardens include:

  • Hybrid mints
  • Large-flowered calamint
  • Lavender

Flowers to Grow in Zone 5

With the proper planting and care, many perennial flowers are hardy enough to survive the cold winters of Zone 5, including:

  • Baptisia
  • Black-eyed Susan
  • Campanula
  • Cinquefoil
  • Russian Sage

Planting Zone 6

USDA Hardiness Zone 6 covers a large portion of the United States. Known as a generally mild climate, the average minimum winter temperature is between -10 to 0 degrees F. With cold winter and mild-to-hot summers, you have many growing options in Zone 6.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (8)

Temperature in Zone 6

Zone 6 can expect minimum average temperatures of -10 to -0 degrees F
Zone 6a has a minimum average temperature of -10 to -5 degrees F
Zone 6b has a minimum average temperature of -5 to -0 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 6?

Zone 6 features many plants ideal for gardening and landscaping. Seed companies, nurseries and garden centers offer Zone 6 gardeners countless options. In many areas, spring, summer and fall blooms and vegetables are all possible.

Vegetables to Grow in Zone 6

In Zone 6, the extended garden season and hotter summer temperatures make growing a wide variety of vegetables popular. Temperatures remain cool enough for rhubarb and asparagus, but get warm enough for melons and watermelon. Look to plant vegetables according to the length of the growing season. Vegetables that tend to do well are:

  • Bush beans
  • Butter lettuce
  • Indeterminate tomatoes
  • Longer season melons
  • Winter squash

Fruit Trees to Grow in Zone 6

Peaches perform especially well in Zone 6. Some varieties to try are:

  • Jefferson
  • Late Crawford
  • Loring
  • Madison
  • Nectar
  • Red Globe

Herbs to Grow in Zone 6

Due to warm springs, herbs that reseed themselves are often popular Zone 6 choices. These include:

  • Borage
  • Coriander
  • Dill
  • False chamomile
  • Oregano

Flowers to Grow in Zone 6

Because Zone 6 features distinct seasons of spring, summer and fall, flowers are available and will bloom for several months. In addition to cold hardy flowers such as pansies and snapdragons, extend your growing season by planting:

  • False sunflower
  • Floribunda rose
  • Flowering fern
  • Japanese Bottlebrush
  • Lady’s Mantle
  • Sedum

Planting Zone 7

Planting Zone 7 reaches across approximately 15 U.S. states. This zone features cool winters with average minimum temperatures falling between 0 to 10 degrees F. Gardens in this zone have multiple plant options from seed catalogues, local home stores, nurseries and greenhouses.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (9)

Temperature in Zone 7

Zone 7 can expect minimum average temperatures of 0 to 10 degrees F
Zone 7a has a minimum average temperature of 0 to 5 degrees F
Zone 7b has a minimum average temperature of 5 to 10 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 7?

Zone 7 contains many different growing climates, from the Eastern coastal areas through the Oklahoma prairies to the arid regions of the southwest and up into the forests of Oregon and Washington. The region’s wide variety in climates means that other considerations often need to be made to accommodate for drought tolerance and to adequately adjust soil conditions. Many Zone 7 hardy plants can be grown successfully in multiple locations with adjustments made to address their specific needs.

Vegetables to Grow in Zone 7

Frost and early spring cold snaps can damage young vegetables. Providing row covers or cold frames can help protect against early spring or late fall damage. The long, hot summers, combined with the milder winters provide ideal growing temperatures for almost all vegetables. Although artichoke can be grown as an annual starting in Zone 4, in Zone 7 this decorative and edible plant becomes a perennial favorite. Add to your planting list:

  • Arugula
  • Hot peppers
  • Long growing season vegetables
  • Sweet peppers
  • Turnips

Fruit Trees to Grow in Zone 7

A wide variety of fruit trees produce well in Zone 7, including:

  • Bing cherry
  • Blue Java banana
  • Contender peach
  • Cortland apple
  • Fuji apple
  • Fuyu persimmon
  • Granny Smith apple
  • Moorpark apricot
  • Ozark plum
  • Parker pear
  • Rainier Sweet cherry
  • Red Gold nectarine
  • Scout apricot
  • Stella cherry
  • Turkey fig
  • Wide variety of mulberries, elderberries and pawpaw trees

Herbs to Grow in Zone 7

In addition to most annual herbs, a wide variety of perennial herbs survive well in Zone 7. Although some varieties of rosemary are Zone 7 hardy, they don’t perform as well as in warmer climates. Herbs to consider adding to your Zone 7 garden include:

  • Feverfew
  • Marjoram
  • Rue
  • Sage
  • Tarragon

Flowers to Grow in Zone 7

The hot summers in Zone 7 allow for the bloom of most flowering annuals. In addition, many perennials are considered hardy to Zone 7, including:

(Video) Find your Grow/Hardiness zone?

  • Butterfly weed
  • Candytuft
  • Chrysanthemum
  • Clematis
  • Forget-me-not
  • Four O’clock
  • Painted daisy
  • Peony

Planting Zone 8

Zone 8 is considered one of the warmest plant hardiness zones for a large portion of the southern United States. Extending up the western coast, Zone 8 features average minimum winter temperatures of 10 to 20 degrees F. With hot summers and mild winters, growers typically enjoy a long planting season.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (10)

Temperature in Zone 8

Zone 8 can expect minimum average temperatures of 10 to 20 degrees
Zone 8a has a minimum average temperature of 10 to 15 degrees F
Zone 8b has a minimum average temperature of 15 to 20 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 8?

Plants hardy for Zone 8 love mild winters and long, hot summers. With a wide range of moisture and sunlight requirements, growers should narrow down a potential plant list first by zone, and then by specific growing climates.

Vegetables to Grow in Zone 8

Many gardeners in Zone 8 grow vegetables three times a year, especially with the aid of cold frames and row covers. Cool weather plants like spinach, lettuce and peas can be grown in both the spring and the fall. Even your summer vegetable harvest can be extended by planting every two weeks. Vegetables that thrive in the summer heat of Zone 8 include:

  • Bolt resistant lettuce varieties
  • Cantaloupe
  • Field peas
  • Hot peppers
  • Okra
  • Tomatoes
  • Watermelon

Fruit Trees to Grow in Zone 8

Many fruit trees are hardy to both the mild winters and hot summers of Zone 8, including:

  • Abacá banana
  • Alma fig
  • Anna apple
  • Bronze banana
  • Bryan apricot
  • Clementine tangerine
  • Darjeeling banana
  • Gala apple
  • Jujube varieties
  • Kumquat and Limequat varieties
  • Marsh grapefruit
  • Meyer lemon
  • Montmorency cherry
  • Multiple varieties of peaches and plums
  • Ruby grapefruit
  • Washington orange

Herbs to Grow in Zone 8

Many of the herbs hardy to Zone 8 are native to Mediterranean areas. They thrive in long, hot summers and are often drought resistant. Consider adding these herbs to your Zone 8 herb garden:

  • Bay laurel
  • Marjoram
  • Mexican oregano
  • Rosemary
  • Sage

Flowers to Grow in Zone 8

Zone 8 flowers should be able to stand up to the heat of the hot summers. Providing shade and plenty of moisture can help push your flowers through the hottest of days. Flowers well suited for Zone 8 gardens include:

  • Asiatic lily
  • Hardy geranium
  • Lantana
  • Mexican petunia
  • Phlox

Planting Zone 9

Planting Zone 9 is considered a year-round planting zone. Located in California, Arizona, Texas, Florida and along the Gulf of Mexico coast, this zone features warm winters and hot summers. With an average minimum winter temperature of 20 to 30 degrees F, Zone 9 features active gardens throughout the entire year.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (11)

Temperature in Zone 9

Zone 9 can expect minimum average temperatures of 20 to 30 degrees F
Zone 9a has a minimum average temperature of 20 to 25 degrees F
Zone 9b has a minimum average temperature of 25 to 30 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 9?

Long, hot summers and mild winter conditions make the heat more of an issue than the cold in this zone. Tropical plants with low water requirements thrive in Zone 9. Because of the extreme heat, spring gardening begins much earlier and fall gardens produce much longer than in other zones.

Vegetables to Grow in Zone 9

Although the growing season in Zone 9 extends over 9 months, you shouldn’t expect a continuous supply of summer veggies. The extreme heat of the summer breaks the vegetable garden season into winter, spring and fall gardening, versus the stereotypical summer gardening. Most areas will only produce peppers, okra and extremely heat-tolerant vegetables during August. However, you’ll likely be able to grow the following vegetables throughout the winter:

  • Broccoli
  • Brussel sprouts
  • Cabbage
  • Cauliflower
  • Greens
  • Spinach

Fruit Trees to Grow in Zone 9

Instead of considering the cold hardiness, growers in Zone 9 actually need to consider the heat tolerance of certain plants. Apples, pears, peaches and cherries require colder weather than Zone 9 provides. Instead of these popular fruit options, consider planting the following citrus and tropical fruit trees:

  • Avocado
  • Calamondin
  • Giant pumelo
  • Hardy kiwi
  • Mandarin orange
  • Olives
  • Passionfruit
  • Starfruit
  • Trifoliate orange

Herbs to Grow in Zone 9

Certain cool season herbs, such as cilantro and parsley, may be grown throughout the winter in Zone 9. Other herbs that tolerate the heat well include:

  • Basil
  • Bay laurel
  • Chives
  • Coriander
  • Lemon thyme
  • Marjoram
  • Mint

Flowers to Grow in Zone 9

Zone 9 flower gardens will showcase blooms year-round. Cold-hardy plants perform well during the mild winters, while tropical perennials are the centerpieces of long, hot summers. Zone 9 flowering plants include:

  • Black-eyed Susan
  • Canna
  • Dahlia
  • Hydrangea
  • Rhododendrons
  • Wisteria
  • Zinnia

Planting Zone 10

Southern inland California, southern Florida and Hawaii are the three small areas where the average minimum winter temperature only falls between 30 to 40 degrees F. The ability of Zone 10 gardeners to avoid freezing temperatures is a huge bonus for winter gardening, but the extreme heat of the summer months limits planting possibilities.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (12)

Temperature in Zone 10

Zone 10 can expect minimum average temperatures of 30 to 40 degrees F
Zone 10a has a minimum average temperature of 30 to 35 degrees F
Zone 10b has a minimum average temperature of 35 to 40 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 10?

Tropical plants top the list for what grows well in Zone 10. With few frosts, the high heat and humidity of summer can become a major concern for growers.

Vegetables to Grow in Zone 10

Cool season crops, including lettuces, radishes and peas, can be grown in Zone 10 during the winter with little fear of cold damage. Summer vegetables must be able to handle the long, hot days of summer. Consider including these vegetables in your Zone 10 garden:

  • Bitter melon
  • Jicama
  • Peanuts
  • Malabar spinach
  • Tomatillos

Fruit Trees to Grow in Zone 10

Zone 10 is an ideal growing zone for many exotic fruit trees, including:

  • Allspice tree
  • Apple guava
  • Carica papaya
  • Dwarf Cavendish banana
  • Jackfruit tree
  • June plum
  • Soursop tree

Herbs to Grow in Zone 10

The heat of summer in Zone 10 is ideal for growing a few unique herbs, such as:

(Video) What Plant Hardiness Zones DON'T Tell You...

  • Curry leaf
  • Galangal
  • Ginger
  • Mexican tarragon
  • Miracle fruit

Flowers to Grow in Zone 10

Tropical plants survive the mild winters and hot summers of Zone 10 with ease. Some beautiful additions to your flower garden may include:

  • Aeoniums
  • Agave
  • African lily
  • Delta maidenhair fern
  • Floss flower
  • Geraniums
  • Hummingbird mint
  • Ornamental onion
  • Peruvian lily
  • Various aloes

Planting Zone 11

Planting Zone 11 is found in Hawaii, the Florida Keys, Puerto Rico and a few small areas of the Continental United States. This extremely warm zone features mellow winters with an average minimum winter temperature of between 40 to 50 degrees F. Cold hardiness is not a factor in this zone, since it has zero frost days. Instead, growers here must consider the impact heat has on their planting choices.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (13)

Temperature in Zone 11

Zone 11 can expect minimum average temperatures of 40 to 50 degrees F
Zone 11a has a minimum average temperature of 40 to 45 degrees F
Zone 11b has a minimum average temperature of 45 to 50 degrees F
Each of the two subzones can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 11?

Tropical plants are the highlight of Zone 11. With long, hot summers and warm winters, Zone 11 growers need to look for plants that are heat tolerant. Traditionally cold season plants, such as pansies and spinach, will have a limited growing season in the even the coolest part of winter here (which is rarely cold at all). Plants native to the area have the best chance of surviving the heat of summer.

Vegetables to Grow in Zone 11

Vegetables often started in late spring or early summer can be planted in late winter in Zone 11. Gardening happens year-round with the rotation of plants according to the temperature. A few cool season vegetables appropriate for winter gardening in Zone 11 include:

  • Beets
  • Cabbage
  • Carrots
  • Kale
  • Radishes
  • Sweet Peas
  • Swiss chard

Fruit Trees to Grow in Zone 11

Most citrus and tropical fruits thrive in Zone 11. Some exotic choices include:

  • Jaboticaba
  • Macadamia
  • Mango
  • Moringa tree
  • Natal plum
  • Sea grape

Herbs to Grow in Zone 11

Growing herbs in Zone 11 can be difficult because of the extreme heat of summer. Many will not produce seeds due to the heat, so they must be planted as annuals during the cooler months. Some herbs you can begin planting in early spring include:

  • Basil
  • Chives
  • Lemongrass
  • Mexican oregano
  • Mint
  • Thyme

Flowers to Grow in Zone 11

The mild winters of Zone 11 allow for the growth of many cool season flowers without any worry of frost. However, these flowers usually wither away under the extreme summer temperatures. Flowers able to withstand the long, hot summers of Zone 11 include:

  • Anemone coronaria
  • Begonias
  • Bougainvillea
  • Drumstick allium
  • Kangaroo paw
  • Ponytail palm

Planting Zones 12 and 13

Planting Zones 12 and 13 are not found in the continental United States, but are located in both Hawaii and Puerto Rico. These two plant hardiness zones are extremely warm, tropical environments that are best suited for plants tolerant of intense heat. With the average minimum winter temperature between 50 and 70 degrees F, Zones 12 and 13, the warmest of all the USDA hardiness zones, feature tropical plants and exotic fruits.

Planting Zones Map - Find Your Plant Hardiness Growing Zone (14)

Temperatures in Zone 12 and 13

Zone 12 can expect minimum average temperatures of 50 to 60 degrees F
Zone 12a has a minimum average temperature of 50 to 55 degrees F
Zone 12b has a minimum average temperature of 55 to 60 degrees F

Zone 13 can expect minimum average temperatures of 60 to 70 degrees F
Zone 13a has a minimum average temperature of 60 to 65 degrees F
Zone 13b has a minimum average temperature of 65 to 70 degrees F
The subzones in both Zones 12 and 13 can experience harsher temperatures depending on weather conditions.

What Plants Can I Grow in Zone 12 and 13?

Heat tolerance and maximum germination temperatures become an issue in Zones 12 and 13. Tropical plants are the key to gardening and landscaping in the extreme heat of both these zones. Growers germinate indoors, purchase plants from nurseries and grow many vegetables during the cooler winter months.

Vegetables to Grow in Zones 12 and 13

Almost all vegetables can be grown in Zones 12 and 13 by simply planting during cooler months and by using shade and irrigation to reduce heat. Planting summer vegetables early will bring a harvest in late June or early July. The late summer monsoon season often brings relief from the heat and generally provides another chance for planting. Look for plants that are heat and drought tolerant and have a short growing season, such as:

  • Bush beans
  • Eggplant
  • Hot peppers
  • Summer squashes
  • Tomatoes

Fruit Trees to Grow in Zones 12 and 13

Exotic fruits native to extremely hot climates are ideal for growing in Zones 12 and 13. Consider planting these unique fruit trees:

  • African apricot
  • African breadfruit
  • Ackee
  • Alupag
  • Amazon tree-grape
  • Bacuri cascudo
  • Bignay
  • Black pepper
  • Imbe
  • Java Olive
  • Tropical almond

Herbs to Grow in Zones 12 and 13

Just like vegetables, growing herbs in Zones 12 and 13 requires planning and plenty of moisture. Look for heat-tolerant options, such as:

  • Borage
  • Cilantro
  • Culantro
  • Rosemary
  • Sage
  • Savory

Flowers to Grow in Zones 12 and 13

With the proper care, many tropical plants will bloom beautifully in this hot climate. Consider planting flowers from the following tropical families:

  • Musaceae
  • Strelitziaceae
  • Heliconia
  • Zingiberaceae
  • Costaceae
  • Cannaceae
  • Marantaceae
  • Lowiaceae

No matter what zone you live in one thing is certain, you’ll need watering equipment. Gilmour offers the best quality in lawn and garden watering equipment you can find.

Hoses | Nozzles | Sprinklers | Watering Timers | Connectors

FAQs

What growing zone am I in UK? ›

The United Kingdom lies in USDA Plant Hardiness Zones 6 through 9 with some variations across regions and seasons. It enjoys a temperate maritime climate characterized by cool winters and warm summers.

What hardiness zone is London? ›

In London, we are in Zone 5a, which means we can grow most plants from zones 3, 4a, 4b and 5a. Q: How are hardiness zones determined? They're based on the average annual minimum temperature, with Zone 1 being the coldest at –45 C and Zone 11 the warmest at above 4 C.

What hardiness zone is Scotland? ›

In the UK, our gardening zones range from 7 to 9 with parts of Scotland in zone 6. The area in which you live will depend on your gardening zone. For example, the North and East of England experiences cooler summers and harsher winters than the South and West.

How do you know what your zone is? ›

Authorities use Zone Names in media releases and on social media to notify residents which areas are under an evacuation warning or order. You can find your Zone Name on your city's or county's Emergency Services website.

What is Zone 8 for plants in the UK? ›

Zone 8 – North-East Coast, everywhere else that isn't mentioned in zones 6, 7 and 9. Zone 9 – most of Ireland, most UK coastal areas, with the exception of the North East coastline which is Zone 8.

What temperature is zone 6 in UK? ›

Few areas in the UK are zone 6, where winter temperatures can drop below minus 17.8 degrees Celsius. Few are in zone 7, where temperatures drop below minus 12.2 degrees C. Most parts of the UK are in zones 8 or 9.

What gardening zone is Birmingham UK? ›

List of Hardiness Zones for Locations in United Kingdom
LocationHardiness Zone
BirminghamZone 9a: -6.7°C to -3.9°C
BlackburnZone 9a: -6.7°C to -3.9°C
BlackpoolZone 8b: -9.4°C to -6.7°C
BoltonZone 9a: -6.7°C to -3.9°C
187 more rows

What planting zone is Somerset UK? ›

At a quarter of an acre, the garden has a cool temperate, with warm summers and minimum -7°C in winter. Hardiness zone USDA 8b.

What gardening zone am I in near Glasgow? ›

The interior Scottish Highlands are considered to be in zone 6, as they regularly experience low temperatures.

What gardening zone is Northern Ireland? ›

Ireland lies in USDA Plant Hardiness Zones 8-9. It enjoys mild weather throughout the year and does not have the extreme temperatures that other countries would have at similar latitudes. Summers are not too hot and winters are not too cold.

What does H4 hardiness mean? ›

Half-hardy - unheated glasshouse / mild winter. Hardy in coastal / mild areas except in hard winters and at risk from sudden (early) frosts. May be hardy elsewhere with wall shelter or good microclimate. Can survive with artificial winter protection. H4.

How do you zone a garden? ›

Garden zoning can be achieved through color and clever planting. Flower beds, box hedges and swathes of wildflowers all help to break up spaces. For a more solid approach, you can build in walls and paths to physically block off different zones, and pick different materials for flooring.

Where is Zone 5 in the United States? ›

Zone 5 States
AlaskaCaliforniaConnecticut
NebraskaNevadaNew Mexico
New YorkOhioPennsylvania
South DakotaUtahVirginia
WashingtonWest VirginiaWyoming
3 more rows

Where is zone 10 in the United States? ›

Zone 10 of the map includes equatorial parts of North America, including southern California, southern Florida, and Hawaii. There are two subsets of Zone 10: 10a and 10b.

Where is Zone 4 in the United States? ›

Zone 4: -30 to -20°F

Zone 4 plants can withstand minimum chilled temps from -30 to -20°F. You can find this zone in Montana, Wyoming, North Dakota, South Dakota, Minnesota, Wisconsin, and Eastern states such as Northern New York, New Hampshire, and Maine.

What growing zone is Belfast? ›

Similarly, Sochi (Russia), Madrid (Spain) and Belfast (Northern Ireland) are also USDA Zone 9; all with varying environments.

What weather zone is Birmingham? ›

Birmingham, Alabama is in USDA Hardiness Zones 7b and 8a.

What can I grow in Zone 8b? ›

Asters, astilbe, bee balm, cannas, coneflowers, crocus, daffodils, dahlias, glads, hibiscus, hostas, hyacinths, irises, jasmine, lilies, peonies, phlox, salvia, sedum, succulents, tulips, and yarrow are among the Zone 8 plants we recommend.

What does hardiness H7 mean? ›

H7. < -20° Very Hardy. Hardy in the most severe European continental climates including exposed upland locations. E.g. Herbaceous and woody plants from continental climates.

How do you know if a plant is hardy? ›

What is a Hardy Plant?
  1. As a rough guide, we say that a hardy plant can survive a temperature of -15°C.
  2. A plant described as frost hardy can survive a temperature of -5°C.
  3. A plant described as half hardy can only stand temperatures as low as 0°C.
  4. A plant described as tender will not survive temperatures below +5°C.

What does fully hardy mean in plants? ›

Fully hardy – these plants will survive a minimum temperature of at least -10°C/14°F. They correspond to levels H4-H7 on the RHS hardiness rating table.

Where is zone 8 in the US? ›

In North America, Zone 8 is one of the warmest zones, containing much of the southern quarter of the United States, including much of North Carolina, South Carolina, Georgia, Alabama, Mississippi, Florida, Louisiana, Arkansas, Texas, Arizona, California, and coastal Oregon and Washington.

What are the plant zones in the United States? ›

The average low temperatures for zone 1 are -60 to -50, for zone 2 are -50 to -40, for zone 3 are -40 to -30, for zone 4 are -30 to -20, for zone 5 are -20 to -10, for zone 6 are -10 to 0, for zone 7 are 0 to 10, for zone 8 are 10 to 20, for zone 9 are 20 to 30, for zone 10 are 30 to 40, for zone 11 are 40 to 50, for ...

What growing zone is Indiana? ›

Indiana has a fairly limited range of USDA Hardiness Zones, with the state including only zones 5 and 6. Weather increases in heat and zone the further south in the state the gardener goes. Some portions in the very tip of the state is in zone 6, as well as the northeastern corner.

What vegetables can I sow now UK? ›

Sow now. Veg: including aubergines, chillies and tomatoes, plus courgettes, squashes, pumpkins, marrows and leeks under cover. Beetroot, carrot, celeriac, peas, radish, lettuce, spinach, Swiss chard, broad beans, spring onions, second early and maincrop seed potatoes.

What flowers grow in Zone 9? ›

Flowering plants for zone 9 include astilbe, bee balm, cannas, coneflowers, crocus, croton, daffodils, dahlias, glads, hibiscus, hostas, hyacinths, irises, jasmine, phlox, salvia, sedum, snake plants and are some the plants for zone 9 that we recommend.

What plants grow well in the Highlands Scotland? ›

She recommends her top 10 plants for sloping, rocky soil in Scotland.
  • Bog Myrtle Myrica gale. ...
  • Heather Erica subspecies. ...
  • Wooly Willow Salix lanata. ...
  • Harebell Campanula rotundifolia. ...
  • Broom Cytisus. ...
  • Scots Oregano Origanum vulgare. ...
  • Globeflower Trollius europeaus. ...
  • Foxgloves Digitalis.
5 Oct 2020

What flowers can I plant now in Scotland? ›

Perennial Plants
  • Liriope muscari 'Moneymaker' Blue Lilyturf. £9.14. ...
  • Astilbe Snowdrift Pot Grown. £6.89. ...
  • Bergenia Cordifolia Elephants Ears. £6.99. ...
  • Coreopsis verticillata Moonbeam. £6.99. ...
  • Crocosmia Lucifer Pot Grown. £6.99. ...
  • Crocosmia x crocosmiiflora Honey Angels. £6.99. ...
  • Geranium Macrorhizum. £6.99. ...
  • Geranium Magnificum. £6.99.

What does frost hardy mean? ›

Definition as written by Magpye:

Plants that are able to survive winter frosts without damage to their leaves (i.e. evergreens) or damage to dormant stems, buts or roots (i.e. deciduous plants). Very much relative to geographic areas.

What weather zone is England in? ›

Most of the United Kingdom is located in USDA zone 9, although climates as chilly as zone 8 or as mild as zone 10 aren't uncommon. As a general rule, the UK is marked primarily by cool (but not frigid) winters and warm (but not scorching) summers.

What gardening zone is Birmingham UK? ›

List of Hardiness Zones for Locations in United Kingdom
LocationHardiness Zone
BirminghamZone 9a: -6.7°C to -3.9°C
BlackburnZone 9a: -6.7°C to -3.9°C
BlackpoolZone 8b: -9.4°C to -6.7°C
BoltonZone 9a: -6.7°C to -3.9°C
187 more rows

What does Hardy H4 mean? ›

Hardy in coastal / mild areas except in hard winters and at risk from sudden (early) frosts. May be hardy elsewhere with wall shelter or good microclimate. Can survive with artificial winter protection. H4.

What gardening zone am I in near Glasgow? ›

The interior Scottish Highlands are considered to be in zone 6, as they regularly experience low temperatures.

What planting zone is Somerset UK? ›

At a quarter of an acre, the garden has a cool temperate, with warm summers and minimum -7°C in winter. Hardiness zone USDA 8b.

What zone is Cornwall? ›

Most areas of the British Isles are in zone 8 of the US system with some western and coastal regions in zone 9. Central, mountain areas of Scotland are in zone 7. The south-westerly tips of Ireland, Cornwall and the Isles of Scily are the mildest areas and can grow some plants designated for zone 10.

What gardening zone is Northern Ireland? ›

Ireland lies in USDA Plant Hardiness Zones 8-9. It enjoys mild weather throughout the year and does not have the extreme temperatures that other countries would have at similar latitudes. Summers are not too hot and winters are not too cold.

What growing zone is Belfast? ›

Similarly, Sochi (Russia), Madrid (Spain) and Belfast (Northern Ireland) are also USDA Zone 9; all with varying environments.

What weather zone is Birmingham? ›

Birmingham, Alabama is in USDA Hardiness Zones 7b and 8a.

How do you zone a garden? ›

Garden zoning can be achieved through color and clever planting. Flower beds, box hedges and swathes of wildflowers all help to break up spaces. For a more solid approach, you can build in walls and paths to physically block off different zones, and pick different materials for flooring.

What is H4 hardiness in UK? ›

H4. -10° to -5° Hardy (Average winter) Hardy throughout most of the UK except at altitude, in inland valleys, and central-northerly locations. In cold gardens in harsh winters, may suffer foliage damage or stem dieback.

What is the hardiness of a plant? ›

Hardiness of plants describes their ability to survive adverse growing conditions. It is usually limited to discussions of climatic adversity. Thus a plant's ability to tolerate cold, heat, drought, flooding, or wind are typically considered measurements of hardiness.

What are plant hardiness levels? ›

These range from 1 (very hardy) to 13 (least hardy), with each divided into two 5°F subzones 'a' and 'b'. This USDA system has been applied to the UK and Europe and gardeners here can use the mapped zones as a general guide. The RHS scale, introduced in 2012, is a more descriptive system of hardiness ratings.

How do you know if a plant is hardy? ›

What is a Hardy Plant?
  1. As a rough guide, we say that a hardy plant can survive a temperature of -15°C.
  2. A plant described as frost hardy can survive a temperature of -5°C.
  3. A plant described as half hardy can only stand temperatures as low as 0°C.
  4. A plant described as tender will not survive temperatures below +5°C.

What does hardiness H3 mean? ›

Half-hardy plants correspond to level H3 on the RHS hardiness rating table. Fully hardy – these plants will survive a minimum temperature of at least -10°C/14°F. They correspond to levels H4-H7 on the RHS hardiness rating table.

What does RHS H5 mean? ›

H5 -15 – -10 Hardy - cold winter Hardy in most places throughout the UK even in severe 7b/8a winters. May not withstand open/exposed sites or central/northern locations. Many evergreens will suffer foliage damage, and plants in pots will be at increased risk.

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