Sunflower, Skyscraper (Helianthus annuus) - 25 Seeds
Skyscraper Sunflower (Helianthus annuus) - 25 Seeds
•American grown seeds
•USDA Zones 1-12
As one of the tallest varieties of sunflower, these giant sunflowers grow to 12-15 ft. high and produce bright yellow flowers up to 14 inches across. A branching sunflower, this variety can also present more than one flower head per plant and blooms throughout the summer. With the largest sunflower seeds, they are generally considered the best for eating.
This seed should be sown directly outdoors since the long roots of this plant need space to develop and dislike being disturbed. After the last spring frost when the soil has warmed to 70-75°, plant several seeds together 1" deep and 6" apart in rich, well drained soil. The seeds will begin to germinate in 1-2 weeks. Thin to the strongest seedling per grouping. The use of a netting or screen can be useful to prevent birds or animals from eating the seeds as they develop. Keep soil moist.
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