Bolting Broccoli: Growing Broccoli In Hot Weather
Broccoli is a cold weather crop, meaning that it grows best in soil with temperatures between 65 and 75 degrees F. (18-24 C.). Warmer than that, and the broccoli will bolt, or go to flower. Many gardeners only have a short window available to them where the temperatures are within that range. An average gardener must contend with temperatures that rise quickly and stay well above the ideal 65 to 75 degrees F. (18-24 C.) range, but there are things you can do to prevent bolting broccoli. Let's take a look at the best way to grow broccoli in hot weather.
Hot Weather Effect on Broccoli
When broccoli gets too hot, it will bolt or start to flower. Contrary to popular belief, hot weather will not cause bolting broccoli. What actually causes bolting broccoli is hot soil.
Tips for Growing Broccoli in Hot Weather
The best way to prevent broccoli flowers from appearing too early is to keep the soil the broccoli is planted in cool.
Mulching
The best way to grow broccoli if you expect hot weather is to make sure that the broccoli plant is well mulched. The hot weather effect on broccoli will only happen if the heat gets to the roots. A thick layer of mulch will help keep the roots cool and prevent the broccoli from bolting.
Watering
Another tip for growing broccoli in hot weather is to water frequently. The cool water will help keep the soil cool as well and will stop bolting broccoli.
Row covers
Keeping the direct sun from the plants and soil is another way to prevent broccoli flowers and keep the ground cool. Row covers are frequently used to keep cold weather crops producing longer.
Harvesting
An excellent way on how to prevent broccoli flowers is to harvest early and frequently. Broccoli is a cut and come again vegetable. When you cut the main head, other smaller heads will grow. The side heads will take a little longer to bolt.
Gardening tips, videos, info and more delivered right to your inbox!
Sign up for the Gardening Know How newsletter today and receive a free download of our DIY eBook "Bring Your Garden Indoors: 13 DIY Projects For Fall And Winter".
Conclusion
The hot weather effect on broccoli cannot be stopped, but it can be slowed. Growing broccoli in hot weather requires a little extra effort to get a good harvest, but it can be done. The best way to grow broccoli in hot weather is to keep the hot weather from getting to the broccoli roots.
Heather Rhoades founded Gardening Know How in 2007. She holds degrees from Cleveland State University and Northern Kentucky University. She is an avid gardener with a passion for community, and is a recipient of the Master Gardeners of Ohio Lifetime Achievement Award.
-
Grow A Music Garden: Hit The High Notes By Making Musical Instruments From Nature
Music lovers and gardening lovers can find a natural groove using items growing and resting around them. Find out how easy it is making musical instruments from nature
By Teo Spengler
-
Why You Should Eat Invasive Plants – A Tasty Way To Control Unwanted Species
Eat invasive plants for nutrition and their amazing varied flavors, but be sure to properly identify the plant and know how to eat it.
By Bonnie L. Grant