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80 days. For seed production. 10 to 12 inch heads on plant 6 feet tall or more. Thin-shelled, striped seeds are plump and meaty.
Package contains 10 grams,  approximately 100 Sunflower, Mammoth Grey Stripe Annual Seeds.
Learn more about Mammoth Grey Stripe Sunflower in this blog post!

Planting Instructions

Germination: 5 to 10 days at 68 to 72 F. Cover seeds completely with soil. Water well and keep moist until sprouted.


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