Organic Sunflower Mammoth 8211 Burpee Seeds

Helianthus annuus CERTIFIED ORGANIC Grow up to 12 feet tall Reach up to 14 inches across Full sun Bright golden-yellow petals CERTIFIED ORGANIC! The Mammoth Sunfloweris a giant variety of sunflower known for its impressive size and striking appearance. Here are some key details: They thrive in full sun and prefer moderately fertile, well-drained soils. They also need a constant supply of water and are heavy feeders, especially needing phosphorus and potassium Annual Approx. 7.5g