The Q&A Archives: Yellowing Kale Leaves

Question: My blue vates curled kale is losing leaves at an alarming rate. The bottom leaves begin to turn yellow over night and in less than two days drop off. This is not the regular old leaves at the bottom situation. Could there be a deficiency in the soil? We had lots of rain in the spring. Could this have washed away something in the soil?

Answer: Kale is one of those cool-season crops that grows best in the early spring or fall months and turns sweeter after a frost. It sounds as though your kale is about to bolt (produce flowers) due to the summer heat (which also turns it bitter). Taste-test a leaf or two. If it's still edible, harvest the older leaves to use in cooking, or the more tender, newer leaves for use in salads.

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