Thomas Jefferson grew green, purple, and white types of broccoli on many occasions in his gardens at Monticello. Introduced to America in the 1880's by Italian immigrants, Calabrese Broccoli is a popular market variety with 5-8", dark green heads. Smaller side shoots can be continually harvested after the main head is removed.
Sow seeds indoors 4-6 weeks before transplanting. Move to cell-packs once they have several true leaves. Harden off and transplant just before the last frost date to well-drained, fertile soil. Tolerates light frost. Approximately 150 seeds per packet.
|Exposure||Planting Method||Planting Depth||Days to Emerge||Plant Spacing||Days to Maturity||Size at Maturity|
|Full Sun||Transplant||1/4"||5-17||18-24" apart; rows 24"||58-90||18-24"|
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