Helianthus annus
Mammoth is one of the largest growing types growing to 3m high. Mammoth sunflower produces large yellow flower heads to 40cm across. A heavy feeder preferring fertile soil in a full sun position.
Sow Spring - Summer.
Helianthus annus
Mammoth is one of the largest growing types growing to 3m high. Mammoth sunflower produces large yellow flower heads to 40cm across. A heavy feeder preferring fertile soil in a full sun position.
Sow Spring - Summer.