Botanical Interests, Inc. - Broccoli (classic) Waltham Seeds

Botanical Name: Brassica oleracea var. italica

Days to Maturity: 75 days

Family: Brassicaceae

Native: Europe

Hardiness: Frost-tolerant annual

Plant Dimensions: 20"–24", compact

Variety Information: Plants produce a medium-sized, 4"–6" main head followed by smaller 1" side shoots.

Attributes: Good for Containers

When to Sow Outside: 4 to 6 weeks before your average last frost date, or when soil temperature is at least 40°F, ideally 60°-85°F. Also in late summer for fall harvest. Mild Climates: Best sown in fall or winter for cool-season harvest.

When to Start Inside: RECOMMENDED. 4 to 6 weeks before transplanting outside after your average last frost date, or 12 weeks before your average first fall frost date. In mild climates, sow in fall for harvest in late winter and early spring. Ideal soil temperature for germination is 70°–85°?, cooler (60°F) growing temperatures thereafter.

Days to Emerge: 7–14 days

Seed Depth: ⅛"

Seed Spacing: A group of 3 – 4 seeds every 24"

Row Spacing: 24"–36"

Thinning: When 2" tall, thin to 1 every 24"

Harvesting: Harvest when florets are enlarged but still closed. This will encourage large numbers of side florets.

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