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. The flavor of Calabrese Broccoli 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 the 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 the suggested measurement. Transplant a week or two before the last frost. Space 12-18" apart. Sow in early to mid-summer for fall crops.  Sowing Outdoors: Spring when the 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