Helianthus annus - Certified Organic Seed - Grown at Greenpatch Organic Seeds
Mammoth is one of the largest growing types getting to 3m high. Mammoth sunflower produces large yellow flower heads to 40cm across. A heavy feeder preferring fertile soil in a full sun position. Flowers in 12-14 weeks.
Sow Spring - Summer
Seed packet contains approx 35 seeds
Approx. 13 Seeds per gram
