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4802

Calabrese Broccoli (Heirloom, 55 Days )

The dark green plants are 18-30” in height and produce 3-6” central heads followed by an abundance of side shoots. Flavor is pronounced, a more basic taste than the more modern varieties. 

30 seeds

PLANTING

Brassica oleracea

Germination: 3-10 days

Germination Temperature: Optimum soil temperatures 65-85ºF.

Seed Sowing Depth: 1/4” deep

Starting Indoors: 4-6 weeks before last frost. Sow 2-3 seeds per cell/pot. Thin to the strongest seedling. Fertilize the seedlings every 7-10 days with a liquid or water soluble fertilizer, diluted to ¼ of suggested measurement. Transplant a week or two before last frost. Space 12-18" apart. Sow in early to midsummer for fall crops. 

Sowing Outdoors: Spring when soil temperature reaches at least 55ºF. Sow 2-3 seeds every 12-18” apart. Thin to the strongest seedling per space. Sow in midsummer for fall crops. Germination is slower at lower soil temperatures.

Harvest: Pick when heads are tight before flower buds starts to open. For varieties that produce side shoots keep picked for a longer production

Tips: Provide fertile soil, rich in organic matter from the very beginning of its growth in the garden. Give adequate, even moisture for the best growth. Mulching helps retain moisture.