The best way to growbroccoli if you expect hotweather is to make sure that the broccoli plant is well mulched. The hotweather 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. What Causes Broccoli to Bolt?Preventing BroccoliBoltinginHotWeather – Quick GuideI’ve grownbroccoliin both coastal cool and inland hot conditions, refining methods to protect... Broccoli is a cold weather crop, meaning that it will bolt or go to flower if it's too warm. To get tips for preventing bolting in broccoli plants and how to grow the crop inhotweather, read this article. When broccolibolts, the head breaks apart and extends the blossoms. The yellow flowers may be pretty, but they aren’t ideal if you want a compact broccoli flower head. Hotweather usually brings on bolting since it tricks the plant into thinking its broccoligrowing season is over. If so, then your broccoli has bolted, where they start growing tall and flowering can occur early on instead of growing larger heads first. Bolting or going to seed is a plant’s response to stress, and most plants bolt when the hotweather hits... Broccoligrows best in full sun, but a little shade can delay bolting in warmer months. Broccoli prefers moist but well-drained soil with a pH between 6.0 and 7.0. how to prevent broccoli from bolting. QUESTION: My broccoli plants bolt very quickly once the temperatures start to rise.-Kim R. ANSWER: Broccoli is a cool weather crop, so when it gets too hot, broccoli plants are quick to bolt, which practically ruins your harvest. It can be planted in the spring and the fall but, it does best in cooler weather. It is important to set your broccoli out in your garden when it will have time to grow while the temperature is not too hot. When broccoli is grown in temperatures in the upper 70s F, it’s going to start bolting and turn... Broccoli is a cool-weather crop, but with proper care and attention, it can be grown successfully even inhot climates.Broccoli can grow in summer, but inhot climates, partial shade from afternoon sun might be necessary to prevent bolting. Is there a trick to growingbroccoli? The key is ensuring cool weather during growth. Plant in early spring or late summer, depending on your climate.Bolting in broccoli signifies a shift from vegetative growth to flowering, usually due to stress from hotweather. BoltingBroccoli: GrowingBroccoliInHotWeather. These factors can cause boltingbroccoli as well. BroccoliGrowing Tall and Flowering Due High Soil Temperatures. Broccoli is a cool-weather crop, so soil that is too warm can also cause broccoli to grow tall and bolt. Broccoli Plant Growth. Broccoli needs full sun, generally at least 6-8 hours of direct sunlight per day. And yet, afternoon shade is a lifesaver inhot climates or during (ever more common) intense heat waves.