Garden Help > Vegetables

Brussels sprouts are a cool season crop, preferring temperatures under 70º F. Sprouts maturing in hot weather and/or dry conditions are more likely to develop bitterness.

Cultural tips for growing Brussels sprouts, UC IPM

Planting

• Transplant seedlings 24 inches apart in July to August, possibly September, depending on weather and local conditions.
• If growing your own seedlings, start the seeds 6 weeks before you want to plant.
• Provide initial nitrogen fertilizer for growth, but avoid additional nitrogen after sprouts begin to form to keep the sprouts from splitting.

Harvesting

• Sprouts form at the places on the stalk where the leaves attach. Some growers like to remove the lower leaves, but it isn‘t necessary.
• They are ready to pick when they are 1 inch in diameter and firm.
• Lower sprouts are ready first and should be harvested earlier than sprouts farther up the stem.

Pest management

Pests and disorders of Brussels sprouts, UC IPM

More links

• Brussels sprouts 2006 trials
• Brussels sprouts information from the University of Illinois Extension
• Disease-resistant Brussels sprouts variety listing from Cornell University

Recommended varieties for Santa Clara County*

Jade Cross

* Many other varieties may also do well here in Santa Clara County. This list is based on UC Master Gardener trials, taste tests, and feedback from local growers.