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Home > Wildflower Seeds > Organic Species  > Sunflower Seeds Russian Mammoth, Organic (Helianthus annuus)
Sunflower Seeds Russian Mammoth, Organic (Helianthus annuus)
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Organic "Russian Mammoth" A beautiful giant, growing as tall as 14 ft with colossal flowers over a foot across.
Sunflower Russian Mammoth
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Product Details
Organic Certification "Russian Mammoth" is one of the true garden giants, growing up to 14 ft. But the flowers, which range from 12 to 14" across are still lovely, with lush golden petals and centers that are not so filled with seeds that they topple over. This one is a giant beauty, and makes a spectacular, fast-growing screen or background for your garden.
Botanical NameHelianthus annuus
Common NameSunflower, Russian Mammoth
TypeAnnual - lives only 1 year. Grows quickly, blooms heavily, then dies with frost. Regrows strongly from seed dropped in fall.
ColorLarge yellow flowers
Height144-180" tall (12-15' tall)
Bloom TimeDays to germinate: 10-14 depending on soil and weather conditions. Days to maturity: 80. (summer until frost)
FlowerBlooms can reach up to 14" in diameter.
Sun/ShadeFull sun
Soil PreferencesSunflowers grow in almost any soil.
Moisture RequirmentsAverage moisture, well drained. Heat and drought tolerant.
Where To Grow ItAll regions of North America
VarietyRussian Mammoth
AdvantagesEdible seeds
Zones3-10
How To Grow ItOne of the easiest plants in the world to grow from seed. Plant in spring after danger of frost is past. Can be distributed lightly into a meadow, or used as a solid wall or screen as a background.
Sunflower Russian Mammoth Sunflower Seeds Russian Mammoth, Organic (Helianthus annuus)
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