Vegetable Bolting

If you’re new to vegetable gardening, you may have heard the term “bolting.” But what does it actually mean?

Tiny yellow flowers of a lettuce plant, one is being visited by a bee.
Lettuce flowers aren’t tasty to people, but the bees seem to like them. Photo: Dwight Sipler

Bolting is another way to say that a vegetable plant has started to flower. It can happen in spring when cool-season crops respond to the warmer temperatures and longer days. Crops that often bolt include Brussels sprouts, broccoli, lettuce, collards, and other greens.

The trouble is that bolting can affect the quality of your harvest. As plants put more energy into flowering and setting seed, the vegetables will start to taste bitter.

Pinch off any flowers as they appear, and you may be able to extend your harvest season by a few weeks. And in the future, look for seed varieties that are labeled as “slow bolting.”

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A fleshy stalk of broccoli with some small florets and several yellow broccoli flowers.
Flowering broccoli

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