Best Vegetables for Growing in a Hot Greenhouse

Are you a passionate gardener looking to make the most of your hot greenhouse? Look no further, because we’ve got you covered! In this article, we will explore the best vegetables that thrive in a hot greenhouse environment. With a focus on maximizing your yield and ensuring your plants flourish, we’ll provide you with valuable insights and tips to help you achieve an abundant harvest. So, whether you’re a seasoned greenhouse enthusiast or just starting out, get ready to discover the perfect vegetables that will thrive in your hot greenhouse oasis.

Best Vegetables for Growing in a Hot Greenhouse

If you’re fortunate enough to have a hot greenhouse, you can take advantage of the warm and sunny conditions to grow a variety of delicious and nutritious vegetables. Whether you’re a seasoned greenhouse gardener or just starting out, it’s essential to choose the right vegetables to ensure a successful and bountiful harvest. In this article, we’ll explore the best vegetables to grow in a hot greenhouse, divided into different categories based on their characteristics and requirements.

Heat-Tolerant Vegetables

When it comes to growing vegetables in a hot greenhouse, it’s crucial to select heat-tolerant varieties that can thrive in the high temperatures. Here are some of the best heat-tolerant vegetables:


Tomatoes are a popular choice for greenhouse gardening, and luckily, there are several varieties that can withstand the heat. Look for varieties like “Heatwave II” or “Sun Gold” tomatoes, which are known for their tolerance to high temperatures. Tomatoes not only thrive in the heat but also produce an abundance of flavorful fruits throughout the season.


Cucumbers are another excellent choice for a hot greenhouse. Varieties like “Burpless Tasty Green” or “Lemon” cucumbers can withstand the heat and reward you with crunchy and refreshing cucumbers all summer long. Just make sure to provide them with trellises or stakes for proper support and air circulation.


Peppers are a staple in many cuisines and can add a spicy kick to your dishes. Opt for hot pepper varieties like “Thai Dragon” or “Habanero” peppers, which thrive in hotter temperatures. Peppers require well-drained soil and regular watering to stay productive in the greenhouse.


Eggplants love the heat and are well-suited for greenhouse cultivation. Varieties like “Black Beauty” or “Ichiban” eggplants can tolerate high temperatures and provide you with glossy and delicious fruits. Just make sure to provide them with ample space and support to prevent their heavy fruits from damaging the plants.

Best Vegetables for Growing in a Hot Greenhouse

Leafy Greens

If you’re a fan of fresh, crisp salads or sautéed greens, you’ll be delighted to know that there are leafy greens that thrive in a hot greenhouse environment. Here are some options to consider:


Lettuce varieties like “Heatwave II” or “Salad Bowl” lettuce have been specifically bred to tolerate heat, making them perfect for greenhouse cultivation. They offer a range of textures and flavors, from delicate butterhead to crispy romaine, ensuring you never run out of options for your salads.


Spinach is not typically associated with heat tolerance, but certain varieties like “Malabar” or “New Zealand” spinach can handle warmer temperatures. These varieties have the advantage of being more heat-resistant while still providing the nutritional benefits of traditional spinach.


Kale is a nutritional powerhouse and a staple in many healthy diets. Fortunately, some kale varieties, such as “Red Russian” or “Lacinato” kale, can withstand the heat in a greenhouse. You can enjoy fresh and vibrant kale leaves throughout the summer, using them in salads, smoothies, or sautés.

Swiss Chard

Swiss chard is a versatile leafy green that adds a pop of color to any dish. It is known for its ability to tolerate heat and offers a mild and earthy flavor. Varieties like “Bright Lights” or “Lucullus” chard are excellent choices for greenhouse growing, providing you with vibrant leaves that can be used in salads or cooked dishes.


Adding herbs to your greenhouse not only enhances the visual appeal but also allows you to season your dishes with fresh flavors year-round. Here are some heat-tolerant herbs to consider:


Basil, with its distinctive aroma and taste, is a must-have herb in any greenhouse. Varieties like “Sweet Basil” or “Thai Basil” do well in warm conditions and can be used in a variety of culinary creations, from pesto to caprese salads.


Mint is a refreshing and versatile herb that thrives in a hot greenhouse. There are various types of mint, such as “Spearmint” and “Peppermint,” each offering its unique flavor and aroma. Mint is a great addition to cocktails, teas, or as a garnish for desserts.


Oregano is a popular herb in Mediterranean cuisine, known for its robust flavor. Varieties like “Greek Oregano” or “Italian Oregano” are well-suited for greenhouse cultivation. You can use fresh oregano in sauces, marinades, soups, and many other savory dishes.


Thyme is a fragrant herb that adds depth and complexity to your meals. Varieties like “English Thyme” or “Lemon Thyme” can withstand the heat, making them ideal for greenhouse gardening. Thyme is great for seasoning roasts, stews, or even for infusing in oils or vinegars.

Best Vegetables for Growing in a Hot Greenhouse

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Root Vegetables

While root vegetables are typically associated with cooler temperatures, some varieties can thrive in a hot greenhouse environment. Here are a few options to consider:


Radishes are a quick-growing and versatile root vegetable that can be grown successfully in a hot greenhouse. Varieties like “Cherry Belle” or “French Breakfast” radishes mature relatively quickly, allowing you to enjoy their crisp and peppery flavor in salads or as a crunchy addition to sandwiches.


Carrots may require some extra care in a hot greenhouse, but with the right variety and proper watering, they can thrive. Look for shorter or “fast-maturing” varieties like “Nantes” or “Paris Market” carrots, which tend to have better heat tolerance. Growing carrots in containers or raised beds can also help regulate soil temperature.


Beets are known for their rich, earthy flavor and vibrant colors. While they prefer cooler temperatures, there are heat-tolerant varieties like “Bull’s Blood” or “Chioggia” beets that can be grown successfully in a hot greenhouse. Beets are incredibly versatile, as you can use both the root and the greens in various culinary creations.

Vine Vegetables

Vine vegetables can be a challenge to grow in a hot greenhouse due to their prolific growth and space requirements. However, with proper support and pruning, you can successfully cultivate the following vine vegetables:


Melons, such as watermelons or cantaloupes, require plenty of space, warmth, and sunlight to thrive. Opt for smaller varieties like “Sugar Baby” watermelon or “Minnesota Midget” cantaloupe, which are better suited for greenhouse cultivation. Melons will reward you with juicy and sweet fruits, making all your effort worthwhile.


Squash, including summer squash or zucchini, can be grown vertically in a hot greenhouse to save space. Varieties like “Black Beauty” or “Eight Ball” squash are well-suited for greenhouse cultivation and produce an abundance of flavorful and tender fruits. Regular watering and proper pruning are essential for successful squash growth in the greenhouse.


Beans, both pole beans and bush beans, can be grown in a hot greenhouse if provided with appropriate support and regular watering. Varieties like “Kentucky Wonder” or “Contender” beans are heat-tolerant and will reward you with a bountiful harvest of tender and tasty beans. Just make sure to train the vines and provide a trellis for them to climb.


While peas prefer cooler temperatures, certain varieties like “Sugar Ann” or “Sugar Snap” peas can tolerate warmer conditions. You can grow peas in a hot greenhouse by providing shading and ensuring consistent watering. Freshly picked peas make a delightful addition to salads or stir-fries.


Best Vegetables for Growing in a Hot Greenhouse


Microgreens are the young, tender shoots of various vegetables and herbs and are gaining popularity as a nutritious and flavorful addition to meals. Here are some heat-tolerant microgreens you can easily grow in a hot greenhouse:


Arugula microgreens add a peppery kick to salads, sandwiches, or even as a garnish for pizzas. They grow rapidly and can be harvested when the first true leaves appear. Varieties like “Rocket” or “Sylvetta” arugula are well-suited for greenhouse cultivation.

Mustard Greens

Mustard greens are known for their bold and tangy flavor. Their microgreens feature the same spicy punch, making them a great addition to salads, stir-fries, or sandwiches. Consider growing varieties like “Red Giant” or “Mizuna” mustard greens for their heat tolerance and vibrant colors.

Broccoli Sprouts

Broccoli sprouts are miniature versions of broccoli with concentrated nutrients and a milder flavor. They are packed with antioxidants and are easy to grow in a hot greenhouse. Harvest the sprouts when they are about 2-3 inches tall and use them in salads, sandwiches, or smoothies for a health boost.

Heat-Resistant Varieties

Beyond selecting heat-tolerant vegetables, there are specific varieties bred to excel in hot conditions. Here are a few examples:

Heatwave II Lettuce

Heatwave II lettuce is a specially bred variety that can withstand high temperatures, ensuring you’ll have a constant supply of fresh lettuce leaves throughout the summer. This lettuce variety is known for its crisp texture and mild flavor, making it a perfect choice for salads or sandwiches.

Thai Dragon Hot Pepper

If you’re a fan of spicy food, the Thai Dragon hot pepper is an excellent choice for your hot greenhouse. This variety is well-known for its heat tolerance and fiery flavor. Add some of these small, but mighty, peppers to your favorite spicy dishes or create your fiery hot sauces.

Sun Gold Tomato

Sun Gold tomatoes are a cherry tomato variety cherished for their intense sweetness and rich flavor. These tomatoes have been bred to tolerate high temperatures, making them perfect for growing in a hot greenhouse. Enjoy these delicious golden tomatoes straight off the vine or add them to salads, salsas, or pasta dishes.

Best Vegetables for Growing in a Hot Greenhouse

Tips for Growing Vegetables in Hot Greenhouses

To ensure your vegetable garden thrives in a hot greenhouse, here are some essential tips to keep in mind:

Provide Adequate Ventilation

Proper air circulation is essential in a hot greenhouse to prevent heat build-up and the risk of diseases. Install fans or vents to ensure sufficient airflow and consider using automatic ventilation systems to regulate the temperature.

Shade the Greenhouse

Shading your greenhouse can help reduce the intensity of the sun’s heat and protect your plants from scorching. Use shade cloths or install shade paint to moderate the amount of sunlight reaching your plants.

Monitor Humidity Levels

High humidity combined with high temperatures can create a breeding ground for pests and diseases. Regularly monitor the humidity levels in your greenhouse and use dehumidifiers or fans to maintain optimal conditions.

Water Regularly

Plants in a hot greenhouse will require more water than those grown outdoors. Check the moisture levels regularly and water your plants accordingly. Consider drip irrigation systems or self-watering containers to ensure consistent and efficient watering.


Applying mulch around your plants helps retain moisture, regulate soil temperature, and suppress weed growth. Organic mulches like straw or compost can also improve soil fertility over time.

Utilize Shade Cloth

In addition to shading the greenhouse, you can use shade cloth to provide extra protection for your more heat-sensitive plants. Erecting trellises covered with shade cloth can create a cooler microclimate for plants like lettuce or leafy greens.

Grow in Containers

Growing vegetables in containers allows you to move your plants around to take advantage of the best sunlight and temperature conditions. Use containers with adequate drainage and choose appropriate-sized pots for the specific vegetables you’re growing.


Growing vegetables in a hot greenhouse can be a rewarding and productive experience. By selecting the right heat-tolerant varieties and implementing some useful techniques, you can create an ideal environment for your plants to thrive. Whether you’re cultivating flavorful tomatoes, leafy greens, aromatic herbs, or vibrant microgreens, a hot greenhouse opens up a world of possibilities for year-round fresh produce. So roll up your sleeves, embrace the heat, and enjoy the bountiful harvest from your hot greenhouse vegetable garden!

Best Vegetables for Growing in a Hot Greenhouse