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Russian Mammoth Sunflower
Helianthus annuus
Heirloom
9-12 ft. Tender Annual/Reseeding
This old favorite that is easy to grow, was first offered by seed companies in the 1880s. It is still grown for its height and large, singular head. 10-14 in. flowers that perch atop the 9-12 ft. stalks. Can even get taller in the right conditions. Edible seeds are medium-large, thin-shelled and striped. Good for eating or for the birds. Annual. (110 days)
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Planting Depth: 1"
Soil Temp. for Germ.: 60-70°F
Days to Germ.: 6-12
Plant Spacing: 1-2'
Days to Maturity: 110
Full Sun
Water Less, Drought Tolerant
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