More About the Mammoth Sunflower Seeds
This giant among sunflowers is a fast grower whose single stalk can reach 12' tall produces one 10" to 12" flower! Enjoy its cheery face greeting passers-by and providing birds with fall fare since 1880.
When to sow outside: Recommended: 1 to 2 weeks after your average last frost date.
When to start inside: 2 to 4 weeks before your average last frost date. Sunflowers are sensitive to root disturbance; sow in biodegradable pots that can be planted directly in the ground.