If you like sunflower seeds, you will love Mammoth Gray Stripe Sunflower. The bright yellow flowers have been known to grow up to 20 in. in diameter, yielding a bumper crop of seeds. The seeds are high in oil content, making for great flavor when roasted. The plants do well in poor soil and tolerate heat and dry conditions, growing 9 ft. to 12 ft. tall and producing heads that average 10 in. to 15 in. across.
- Plant seeds 1 in. D and 2 ft. to 4 ft. apart
- Prefers light, well-drained, dry soil
- Germinates in 10-days to 14-days, matures in 100-days
- Reaches standard mature height of 9 ft. to 12 ft.
- Deadhead to promote flowering
- Includes one 1 oz. packet of seed
- Botanical name: helianthus annuus mammoth gray stripe














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