Brussels Sprouts Growing Quick Tips

Brussels sprouts close up
Brussels sprouts grow best in cool weather
Plant Brussels sprouts so that they come to harvest in cool weather.

Quick tips to get Brussels sprouts growing in your garden.

Sowing: Sow Brussels sprouts seeds from spring to early summer in cold-winter regions; in warm-winter regions, sow from fall to spring. Start seed indoors 8 weeks before transplanting seedlings to the garden. Sow seeds in a warm, well-lighted location—in a bright window or under grow lights. Sow seeds 1/4″ (6 mm) deep in seed starting mix. Firm lightly and keep mix just moist. Seedlings emerge in 10-21 days at 50-85°F (10-29°C). Sow seed outdoors when the soil temperature is at least 60°F (16°C).

Growing: Seedlings can be transplanted into the garden when they are 4-5” (10-13 cm) tall. Move seedlings to a sheltered place outdoors to “harden off” 1 week before transplanting. Space plants in garden 24″ (61 cm) apart in rows 36” (91 cm) apart. Grow Brussels sprouts in rich, well-drained soil, in full sun. Give sprouts regular water keeping the soil evenly moist.

 Harvesting: Brussels sprouts are ready for harvest 100-110 days after sowing, 80-90 days after transplanting. Harvest Brussels sprouts after frost (for best flavor) and through mid-winter in most areas. Pick when sprouts are firm and well-formed 1-1½” (25-38 cm) in diameter. First remove the leaves below the row of sprouts being harvested then twist the sprouts off stems. Store harvested sprouts in refrigerator for up to 3 weeks. You can blanch and freeze Brussels sprouts. They are excellent steamed, roasted, or sautéed.

See all detailed Brussels sprouts growing articles at Brussels Sprouts.

Written by Stephen Albert

Stephen Albert is a horticulturist, master gardener, and certified nurseryman who has taught at the University of California for more than 25 years. He holds graduate degrees from the University of California and the University of Iowa. His books include Vegetable Garden Grower’s Guide, Vegetable Garden Almanac & Planner, Tomato Grower’s Answer Book, and Kitchen Garden Grower’s Guide. His Vegetable Garden Grower’s Masterclass is available online. has more than 10 million visitors each year.

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