Mammoth Grey Stripe Sunflower is a mammoth of a sunflower, boasting huge blooms of almost 12 inches across on stems 8-12 feet tall! Harvest some grey-striped sunflower seeds for toasting and snacking in the Fall. An exciting sunflower to watch grow!
Species | Sunflower, Mammoth Grey Stripe |
Days to Germinate | 7-14 |
Days to Bloom | 100-125 |
Plant Height | 8-12 feet |
Germination Rate | 91% |
Test Date | 11/23 |
Lifespan | Annual |
Brand | TomorrowSeeds |
Sunlight | Full Sun, Partial Shade |
Seeds Packed For | 2024 |
Planting Instructions:
Plant 1 inch in soil after danger of frost has passed in Spring and soil temperature is at least 65F.
Spacing | 30 inches |