When to Harvest Brussels Sprouts
Harvest Brussels sprouts when individual sprouts are firm, tightly closed, and about 1 to 1½ inches across, starting at the bottom of the stalk. They are usually ready 90 to 120 days after transplanting and often improve after cool autumn weather.
Begin checking the lowest sprouts first because they mature before those higher on the stem. A ready sprout is dense and smooth-sided, not loose, puffy, or yellowing.
Twist each sprout downward until it snaps off, or cut it cleanly with a knife. Harvesting a few lower sprouts at a time lets the upper sprouts continue sizing up over the next several weeks.
In much of the United States, Brussels sprouts are a fall crop. Plan transplanting so the main harvest develops in cool weather, often after the first light frosts in northern areas and during late fall or winter in milder regions.
A light frost can sweeten the perceived flavor of mature sprouts, but it is not required for harvest. Prolonged hard freezes can damage exposed sprouts, so harvest before severe cold if plants are not adequately protected.
When the lower sprouts are nearly mature, some gardeners remove the growing tip about 3 to 4 weeks before the desired final harvest. This can concentrate growth in existing sprouts, but do not top plants too early or overall yield may be reduced.
Refrigerate sprouts promptly, either on the stalk or removed. Keep them unwashed in a perforated bag near 32°F and use within about 1 to 2 weeks; sprouts left attached to short stem pieces often hold quality well.
Frequently asked questions
Why are my Brussels sprouts loose instead of tight?
Loose sprouts commonly result from warm weather during development, uneven growth, or harvesting too late. Harvest only firm, compact sprouts.
Should I harvest the whole Brussels sprout stalk at once?
You can, especially before a hard freeze, but picking lower sprouts first usually gives upper sprouts more time to mature.
Do Brussels sprouts keep producing after harvest?
Yes. Removing mature lower sprouts allows higher sprouts to continue developing as long as conditions remain suitable.
General guidance for US home gardens. Conditions vary by region and season; check with your local Cooperative Extension office for site-specific advice. Page updated Aug 4, 2026.