Periodically apply a high nitrogen fertilizer to stimulate leaf growth. Plant brussels sprouts in tightly packed, fertile soil.Water brussels sprouts during dry spells.Mulch helps retain soil moisture, reduces competition from weeds, and keeps the soil temperature cooler. Apply a generous layer of mulch around your brussels sprouts.If you’ve planted at the correct time and you still find your brussels sprouts are bolting, try the following tips: Unusual weather patterns and inadequate growing conditions can also contribute to leafy vegetables prematurely flowering. Cold winters (Temperatures remain below freezing): Start brussels sprouts indoors several weeks before the last frost.Mild winters (Temperatures occasionally drop below freezing): Sow brussels sprout seeds directly into the garden soil in early to midsummer.Warm winters (Temperatures rarely dip below freezing): Sow brussels sprout seeds directly into the garden soil in late summer.The optimal time to plant brussels sprouts depends upon your climate and the harshness of the winter months.
If your brussels sprout plants bolted last year, try re-evaluating your planting schedule.
Brussel sprout plants how to#
How to Stop Brussels Sprouts from Boltingįirst and foremost, it’s essential to plant cool-season plants that are prone to bolt at the correct time of the year. Brussels sprouts tend to bolt if planted at the wrong time of year. Then, when warm temperatures arrive in the summer, these biennials think it’s year number two and begin flowering. When temperatures stay warm enough for the biennial to survive the winter, the second year is dedicated to flower and seed production.Įxposing young biennials to cold weather early in their first year can trigger these plants into thinking they survived the winter. During the first year, the plant concentrates its energy on leaf production. When this happens, the plant puts its energy into flower and seed production, not leaf growth.īiennials, like brussels sprouts, can bolt for slightly different reasons. When temperatures and daylight hours increase, annual leafy green vegetables, like lettuce, will quickly send up a stem with a flowering head at the top. Brussels Sprouts and Boltingīolting is a plant’s natural inclination to propagate. Once they begin flowering, brussels sprouts won’t produce those mini cabbage-like heads that have become so popular in roasted vegetable medleys. It’s frustrating, especially if you don’t understand how to stop brussels sprouts from bolting. You tenderly plant them, you carefully weed them, then one hot summer day you discover your brussels sprouts are bolting.
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