Broccoli grows best in temperatures between 18 and 23 degrees Celsius, but can withstand temperatures as low as 5 degrees Celsius and as high as 30 degrees Celsius. Broccoli is a cool-season crop, so it is ideal to grow it in early to mid-spring for an early summer crop or in mid to late summer for a fall crop.
It is important to note that if broccoli is exposed to temperatures below -5 degrees Celsius for an extended period of time, it can result in the crop being damaged. We will discuss the ideal temperature conditions for growing broccoli, how to grow broccoli in pots, broccoli spacing, and other tips for successful broccoli cultivation.
We will also explore the different varieties of broccoli seeds for planting and companion plants that can help enhance broccoli growth.

Credit: sowrightseeds.com
Ideal Temperature For Broccoli
Broccoli is a cool-season crop that grows best when the temperature is between 65-75°F (18-23°C). It can withstand light frosts and can be grown in winter in mild regions. For optimum growth, provide consistent moisture and keep the soil pH around 6.5-7.5. Broccoli sprouts can be grown indoors at room temperature with minimal light. However, it is not recommended to grow broccoli in extreme heat as it may cause the plant to bolt and become bitter. As a beginner, it is best to start with fall crops and choose varieties that are suited for your climate. When planting, make sure to space the plants 18-24 inches apart in rows with a distance of 30-36 inches between them to allow room for growth.
Companion Plants for Broccoli: | Garlic | Lettuce | Tomato | Onion | Radish | Dill |
Broccoli Seeds to Plant: | Nature Jim’s Sprouts Broccoli Sprouting Seeds | Burpee Broccoli Sun King Hybrid | Food to Live Broccoli Seeds for Sprouting | Now Foods Broccoli Seeds | Everwilde Farms Waltham Broccoli Seeds | Burpee Sprouting Broccoli Butler Seeds |

Credit: ohioline.osu.edu
Broccoli Growing Seasons
Broccoli is a cool-season crop that can tolerate temperatures between 60 and 65°F, but it can also withstand slightly lower or higher temperatures. It should be started in early- to mid-spring for an early summer crop or in mid- to late summer for a fall crop.
Broccoli doesn’t generally thrive in tropical climates.
Broccoli is a cool-season crop, so it grows better in the cooler seasons like spring and fall. It can be started in early to mid-spring for an early summer crop, or in mid-to-late summer for a fall crop. Broccoli prefers temperatures between 60-65°F (15-18°C) for optimal growth, but can still grow in temperatures as low as 40°F (4°C) and as high as 75°F (24°C). However, it may struggle to survive in temperatures above 75°F (24°C), especially if the heat lasts for an extended period. Therefore, growing broccoli in the summer may be challenging in hotter regions. It’s important to note that broccoli is a heavy feeder and requires well-draining soil rich in organic matter. If growing broccoli in a pot, ensure it has a depth of at least 12 inches and is positioned in an area with full sun exposure. Additionally, broccoli grows well with companion plants like garlic, lettuce, tomato, onion, radish, and dill.Growing Broccoli At Home
Broccoli can grow in temperatures ranging from 45-75°F (7-24°C), making it a great option for cool-season crops. It should be started in early to mid-spring for an early summer crop or in mid to late summer for a fall crop.
Broccoli cannot survive extreme heat, but it can be grown in summer with proper care and attention to watering.
Broccoli Spacing in cm | 30-45 cm between plants |
Does Broccoli Grow in the Ground? | Yes, broccoli can be grown in the ground but it can also be grown in pots. |
How to Grow Broccoli at Home in a Pot | To grow broccoli at home in a pot: |
1. Choose a large pot with drainage holes. | |
2. Fill the pot with potting soil and add organic fertilizer. | |
3. Plant the broccoli seeds ½ inch deep and water thoroughly. | |
4. Keep the soil consistently moist and provide plenty of sunlight. | |
Growing Broccoli in Home Gardens | Broccoli can be grown easily in home gardens with proper care and attention. It is suitable for both spring and fall planting. |
Where Does Broccoli Grow? | Broccoli grows in places with cool weather and an adequate amount of sunlight. It is commonly grown in areas like the United States, Europe, and Australia. |
Broccoli Companion Plants
Broccoli is a cool-season crop and can be grown in early-to-mid spring or in mid-to-late summer for a fall crop. It grows well in regular summer temperatures but the maximum temperature for growing broccoli varies. Planting broccoli with companion plants like garlic, lettuce, tomato, onion, radish, or dill can boost its growth.
Broccoli grows best in cool temperatures ranging from 60 to 65 degrees Fahrenheit. It can tolerate temperatures below freezing but not above 75 degrees Fahrenheit. Broccoli plants benefit from having companion plants such as garlic, lettuce, tomato, onion, radish, and dill. These companion plants help repel pests, retain moisture, and provide necessary nutrients. When planting broccoli, it is important to choose a site that receives plenty of sunlight and has well-drained soil. Broccoli is a cool-season crop that can be started in early to mid-spring for an early summer harvest or mid to late summer for fall harvest. Gardeners in cooler climates can grow broccoli all summer long, while those in warmer regions should plant during the cooler months.Broccoli Seed Varieties
Broccoli grows best in cool-seasons and should be started in early to mid-spring for an early summer crop or mid to late summer for a fall crop. Broccoli is capable of surviving summer heat as long as they are grown in regular summer temperatures.
Broccoli is a cool-season crop that requires an optimal temperature range for growth and development. According to experts, the ideal temperature range for growing broccoli is between 60-65°F, and they can withstand temperature lows as low as 28°F. Broccoli seed varieties are available in the market for planting, which include Burpee Broccoli Sun King Hybrid, Food to Live Broccoli Seeds, Now Foods Broccoli Seeds, Everwilde Farms Waltham Broccoli Seeds, Burpee Sprouting Broccoli. If you plan to cultivate broccoli at home, it is best to start in early to mid-spring or mid-to-late summer for fall crop. Broccoli grows well in Northeastern Minnesota’s regular summer temperatures, and it is possible to grow broccoli in pots at home. However, growing broccoli in a tropical climate may not be sustainable.
Credit: bonnieplants.com
Frequently Asked Questions On What Temp Can Broccoli Grow?
What Is The Coldest Temperature For Broccoli?
Broccoli can tolerate temperatures as low as 20°F (-7°C) but the ideal temperature range for growing broccoli is from 65°F to 75°F (18°C to 24°C).
What Is The Maximum Temperature For Growing Broccoli?
Broccoli grows best in cool temperatures between 45-70°F (7-21°C), with the ideal temperature being around 60-65°F (15-18°C). Temperatures above 75°F (24°C) can cause the plant to bolt and produce small florets.
Can You Grow Broccoli In Summer?
Broccoli is a cool-season crop, but it’s possible to grow it in summer. It should be started in early- to mid-spring for an early summer crop or in mid- to late summer for a fall crop. The regular summer temperatures are suitable for growing broccoli, and it can be grown indoors at room temperature.
Can Broccoli Survive Heat?
Broccoli is a cool-season crop, so it grows best in cooler temperatures. However, it can survive some heat, as long as it gets enough moisture and is protected from extreme heat and sunlight. It is recommended to start broccoli in early to mid-spring for an early summer crop or in mid- to late summer for a fall crop.
Conclusion
Broccoli is a cool-season crop that requires favorable temperatures for optimal growth and development. Based on our research findings, the ideal temperature range for growing broccoli is 60°F to 65°F (15°C to 18°C). It is worth noting that broccoli plants can tolerate some degree of cold, but temperatures below 24°F (-4°C) can be detrimental to their growth.
Additionally, broccoli plants require ample sunlight and well-draining soil. By following these guidelines and tips, you can grow healthy and tasty broccoli plants in your garden or even indoors. Happy growing!

I am a graduate of Bangladesh Agricultural University, where I delved into various agricultural disciplines, equipping me with a profound understanding of agriculture. Beyond academics, I have hands-on experience in gardening and crop cultivation. My passion is to embrace sustainable farming and horticulture. With a BSc in Agriculture, I am dedicated to promoting environmentally conscious and efficient agrarian practices.
Bachelor of Science (BSc) in Agriculture (Hons.)
Master of Science. (Sustainable Agriculture & Food Security ) (MS)
Bangladesh Agricultural University