WALTHAM 29 BROCCOLI is a cold resistant plant that produces medium to large heads. Waltham broccoli plants can grow up to 2 feet tall. Plant Waltham broccoli as soon as soil can be worked after last frost. Broccoli will mature faster if planted to take advantage of cooler temps. May be planted in the fall 10-12 weeks before first frost. The entire plant is edible, from the leaves, broccoli head and flowers! Wonderful for soups and steaming as a side dish, or served raw with a dip or hummus. Broccoli is packed with antioxidants and sulforaphane, believed to help prevent and fight cancer, improve bone health, promote healthier skin, and help with natural detoxification. 300+ seeds per order. Brassica oleracea. Annual. Cool season vegetable. Early spring / Fall. Soil temp 60F+. SOW- 3/4 seeds per, 1/4" deep, 18" apart. Keep moist. Germination 7 - 14 days. Thin to single best seedling. Use scissors to cut out unwanted sprouts. Medium water. Organic fertilizer if needed. Height 24" x 18" wide. About 80 Days for main head. Harvest side shoots through out growing season.