Best Heat Tolerant Vegetables to Grow in the Summer in Hot Climates (2024)

Some places are just easier than others for growing vegetables. Vegetable gardening in the really hot areas of the United States can be challenging, especially if you don’t take your specific climate into account. Vegetable gardening is all about becoming attuned to the environment around you and learning about how plants interact with your climate. If you are used to a more temperate climate, or you have been taking your inspiration from gardeners further from the equator, there may be an adjustment while you learn what your climate will support and what is won’t. Don’t be discouraged! But do your research and you will be rewarded for your efforts. It is absolutely possible to have a great garden, even in really hot places, if you plan accordingly.

Vegetable gardening is all about becoming attuned to the environment around you and learning about how plants interact with your climate. If you are used to a more temperate climate, or you have been taking your inspiration from gardeners further from the equator, there may be an adjustment while you learn what hot areas support really well and what they don’t. Don’t be discouraged! But do your research and you will be rewarded for your efforts.

Things to consider when you are gardening in warm and hot climates

While plants need sunlight to grow, sunlight also causes water to evaporate, and lots of direct, intense sunlight causes water to evaporate very quickly. You will need to find a balance between getting ample sunlight, consistent water, and not overwatering.

When gardening in hot areas, think about these five things:

  1. Your watering schedule
  2. Shade
  3. Mulch (retaining moisture)
  4. Wind and,
  5. The vegetables you want to grow

Watering Schedule

In hot climates it is crucial to water your garden at least twice a day. It is best to do this morning and evening. Watering in the middle of the day is fine, but it is less efficient as so much of it evaporates before it gets to your plants. Be aware that it is still possible to overwater. Overwatering can cause mold, rot, or just literally “water down” the flavor of some vegetables like tomatoes and melons.

Mulch

I don't usually recommend using mulch with a Seedsheet garden, but I would make an exception for very hot climates, as long as you are careful not to cover delicate seedlings. It is good to wait until your seedlings are well established, approximately 4-6 inches tall. Using a mulch helps you improve water retention. It alsoblocks weeds, keeps the soil cool, and makes your garden look nice. The Seedsheetsheetis in fact already a mulch. I like toapply up to an inch ofstraw, shredded leaves or compost over the Seedsheet, leaving an opening for each plant to grow.

If you find that your garden is in an inhospitable environment, you can modify it to make it more welcoming to your plants.

Shade

If your plants are getting too much direct sun, you can create a shade using row covers you would find in a gardening store, or use existing shade like a tree or an awning. If your planters are small enough to lift, you can move your garden to take in more sun or shade as you need it.

Wind

Another factor that increases evaporation is wind. If your garden is exposed to wind, you might consider adding a wind baffle, any structure that will shelter your plants and soil from the breeze will help them retain moisture. We also suggest securing your sheet with additional weights, such as heavy rocks or bricks, to prevent your sheet from blowing away in a wind storm.

Vegetables that work well in warmer climates

Some vegetables thrive in hot weather and in fact, vegetables such as corn, tomatoes, some peppers, eggplant, squash and melons will not grow well unless they have at least a month of 80 to 90° weather. These vegetables tend to require lots of water, so maintain a consistent watering schedule or use a soaker hose to make sure they get the moisture they need.

Tomatoes

Tomatoes will do fine up to about 90℉. You can grow them hotter than that, but there are a few things you should know. It helps to mulch tomatoes to keep the roots from drying out. Weeding is also useful because weeds will compete with your tomatoes for moisture. Be careful of overwatering, because tomato roots can drown in the extra water, and don’t fertilize. Fertilization will encourage the leafy parts of the plant to overdevelop rather than growing more fruit. Finally, tomatoes in hot weather will not get as red, so go ahead and pick them while they are orange and let them finish ripening on the window sill.

Best Heat Tolerant Vegetables to Grow in the Summer in Hot Climates (1)

Bell Peppers

Peppers need consistently warm temperatures in order to produce well, and they thrive even in hardiness zones 9-11. But excessive temperatures can cause these plants to struggle. Avoid giving the plants too much water, but if they start to wilt, it’s ok to immediately pour a gallon of water on each plant.

Cucumbers

Cucumbers love full sun and thrive in hot summer weather. Their ideal growing temperature is between 50 and 95 degrees Fahrenheit. If it gets particularly hot, mulching is key, along with maintaining consistent moisture, allowing no more than two inches of dry soil at the surface.

Green Beans

French beans, the ones you are most likely to find in the grocery store, are well suited to warm weather. They require full sun and warm temperatures to reach their full glory.

Herbs

Many herbs thrive in extreme weather. You can find sage and rosemary poking through the rocks in the desert! Basil, chives, cilantro, mint and dill are all hardy and useful to have at hand.

Vegetables that do well even in really hot climates

If you are gardening in really, really hot climates like Southern Florida, Texas or Arizona, you might want to focus on vegetables that do well in extremely hot weather. Vegetables like corn, okra, eggplant, hot peppers, tomatillos, and even though they aren’t vegetables, melons like watermelons and cantaloupes.

Corn

Corn originated as a tropical grass. It does best between 77 and 90℉, but corn can handle temperatures as high as 112℉ for short periods of time.

Okra

Okra is a true hot weather vegetable, originating in Egypt, Western Africa or possibly South East Asia.Okra is easy to grow and delicious as long as you harvest it before it starts to get woody!

Eggplant

Does great in the heat and does especially well in warm climates with long growing seasons.

Hot Peppers

You can have a lot of fun with hot peppers in hot climates. There is endless variety and many of them will do much better in hot weather than their milder cousin, the bell pepper. And, spicy food helps you feel cool.

Tomatillos

These little fruits, sometimes called husk tomatoes, are popular in Mexican foods like salsa verde. And they are healthy, too! Tomatillos are a good source of niacin, potassium, and manganese and are rich in antioxidants.

Try makingourAvocado Salsa Verde recipe, featuring fresh tomatillos.

Best Heat Tolerant Vegetables to Grow in the Summer in Hot Climates (2)

Hot Climate Seedsheet Gardens:

Here's some inspiration to design your ownHeat Tolerant Vegetable Garden.

Family Size Garden (30" Round):

Best Heat Tolerant Vegetables to Grow in the Summer in Hot Climates (3)

Container Garden (12" Round):

Best Heat Tolerant Vegetables to Grow in the Summer in Hot Climates (5)

Best Heat Tolerant Vegetables to Grow in the Summer in Hot Climates (2024)

FAQs

What vegetables can tolerate high heat? ›

Best Vegetables to Grow in the Heat
  • Sweet Potatoes. Grown from transplants called slips, sweet potatoes love hot weather but do require a long growing season. ...
  • Peppers. ...
  • Sunflowers. ...
  • Swiss Chard. ...
  • Okra. ...
  • Zucchini & Summer Squash. ...
  • Green Beans. ...
  • Eggplants.

What vegetables can be planted in the hot summer? ›

Vegetables that do well even in really hot climates

Vegetables like corn, okra, eggplant, hot peppers, tomatillos, and even though they aren't vegetables, melons like watermelons and cantaloupes. Corn originated as a tropical grass.

What veggies do well in full sun? ›

Plants such as tomatoes, peppers, and corn love this intense sunlight and turn all that light into delicious food. But coleus, lettuce, and other plants will prefer some shade during the hours of intense sunlight.

What plants can take full sun and heat? ›

Their delicate appearance and hardy nature make them ideal plants for spots in your garden that receive full sun.
  • Zinnias. ...
  • Purple Coneflower (Echinacea purpurea) ...
  • Blanket Flower (Gaillardia species) ...
  • Black-eyed Susan (Rudbeckia species) ...
  • Cosmos. ...
  • 6. “ ...
  • Egyptian Star Cluster (Pentas lanceolata) ...
  • Lantanas.

Will cucumbers grow in 100 degree weather? ›

Like all crops, cucumbers too have a preferred temperature range. As a warm season crop, the ideal temperature range for cucumbers is generally 21-26°C (70-80°F). However, the plants can withstand a wider range, if necessary, ranging from 15-29°C (60-85°F).

What vegetables do not like full sun? ›

Try these shade-tolerant vegetables in your garden:
  • Salad greens. arugula, endive, lettuce, sorrel, spinach. ...
  • Leafy greens. collards, kale, mustard greens, swiss chard. ...
  • Root veggies. beets, carrots, potatoes, radishes, rutabaga, turnips. ...
  • Brassica veggies. Broccoli and cauliflower, brussels sprouts, cabbage. ...
  • Herbs.
Jun 15, 2017

How hot is too hot for a vegetable garden? ›

Most plants grow best in temperatures ranging from 59°–86°F. When temperatures above 90°F are sustained for long periods, plant growth is slowed, and some plants begin to show signs of stress.

How hot is too hot for squash? ›

Plants can experience heat stress when temperatures are above 90 degrees for a prolonged period, or if temperatures are above 104 degrees even for a short time. The heat stress is compounded when it's windy and the soil starts to dry out.

What should you not plant next to squash? ›

You may want to experiment with different companion crops until you find the perfect combination to fit your personal tastes and growing conditions. Avoid planting zucchini and summer squash with all other vining plants which include cucumbers and sweet potatoes as well as pumpkins, winter squashes, and melons.

What are the easiest vegetables to grow in your garden? ›

  • Easiest vegetables to grow. ...
  • Leafy greens. ...
  • Root vegetables: Radishes, turnips and carrots. ...
  • Did you know? ...
  • Cucumbers. ...
  • Broccoli. ...
  • Peas/Snow Peas. ...
  • Strawberries. Everyone wants to grow their own strawberries, and nothing is more deliscious than one straight from your patio or backyard.

Do cucumbers need full sun? ›

Cucumber plants like sun, but are prone to scorching, so some shade is preferable. Encourage greenhouse varieties to climb to boost yields. Harvest fruits early in the day while it's cool.

What is the easiest plant to grow in full sun? ›

Top 10 Low-Maintenance Plants for Full Sun
  • Panicle hydrangea (Hydrangea paniculata)
  • Holly (Ilex spp.)
  • Bloomerang® lilac (Syringa x)
  • Bluestar (Amsonia)
  • Russian sage (Perovskia)
  • Stonecrop (Sedum)
  • Milkweed (Asclepias)
  • Ornamental Grasses.
Jul 27, 2019

What is the most drought tolerant plant? ›

20 Drought-Tolerant Plants for a Beautiful Landscape
  • ASTER (Symphyotrichum spp.) Zones: 3-8. ...
  • BEARDTONGUE (Penstemon spp.) Zones: 3-9. ...
  • BLACK-EYED SUSAN (Rudbeckia spp.) ...
  • BLANKET FLOWER (Gaillardia spp.) ...
  • BLUE FESCUE (Festuca glauca) ...
  • BUGLEWEED (Ajuga reptans) ...
  • CATMINT (Nepeta spp.) ...
  • CRANESBILL GERANIUM (Geranium spp.)

How do you plant in extreme heat? ›

Plant early in the morning or at night just before or after the sun comes up. The air tends to be cooler and the sun less intense. Whatever you do, avoid the midday sun, which is the hottest and highest in the sky. Watch the forecast and plant just after or during a rainy day.

How hot is too hot for vegetables? ›

So, how hot IS too hot for plants? The general answer is around 90 degrees F, with some exceptions to the rule. This means that when temps rise above 90 and remain there for a lengthy spell: Leaves wilt.

What crops are high temperature tolerant? ›

Some vegetables, such as eggplant, okra and sweet potatoes, are inherently very heat tolerant. In other crops there are notable differences in heat tolerance between varieties and some varieties have been selected particularly for heat tolerance.

Which vegetable is good for heat? ›

Root vegetables like carrots, sweet potato, radish, beetroot are innately hot. These vegetables require more energy during the process of digestion causing rise in body temperature. Further they are also high in vitamin, minerals and fiber. 2.

What crops are sensitive to heat? ›

Crops such as snap and lima bean, squash, pepper, and tomato are especially sensitive to heat stress at flowering and fruiting.

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