Bolting crops in cool and warm temperatures confuse gardeners
Temperature shifts trigger bolting in lettuce spinach arugula radishes turnips and mustards and even broccoli cauliflower kale and collards when planted early or exposed to prolonged cool periods. Cool-season crops may bloom flowers usable in salads while leafy greens decline. Fall planting offers lower bolting risk. Jennifer Smith, K-State Extension horticulture agent in Douglas County, offers guidance and contact details.