Safe and Sustainable - Our operation is fully solar powered, and Sow Right Seeds has taken the Safe Seed Pledge to sell only fresh Non-GMO heirloom seeds for you and your family.
Efficient - Mammoth Sunflower will sprout within 7-14 days if the soil temperature is between 70-75°F. Sow seeds 1” deep and space them 3’ apart in a location that receives full sun. This variety can reach heights of 8-12’ and has a width of 2-3’. The blooms will reach maturity in 80-90 days and are suitable for planting in USDA zones 3-9.
Easy to Grow - Instructions included on each packet. Plus, we are available to answer all your questions. If these seeds don’t germinate, we will happily make it right for you.
Pollinator and Bird Friendly - Bees love the nectar in sunflowers and will travel around helping pollinate your garden. Towards the end of the season, birds also love to come and eat the dried seeds.
Beautiful - Mammoth Sunflower (Helianthus var. 'Mammoth') seeds. These seeds grow crazy tall huge beautiful sunflowers with heights of 8-12 ft. The seeds are open pollinated and can be saved to plant year after year. Harvest and roast your own sunflower seeds. Minimum of 8g per packet (approximately 70 to 80 seeds).
Safe and Sustainable - Our operation is fully solar powered, and Sow Right Seeds has taken the Safe Seed Pledge to sell only fresh Non-GMO heirloom seeds for you and your family.
Efficient - Mammoth Sunflower will sprout within 7-14 days if the soil temperature is between 70-75°F. Sow seeds 1” deep and space them 3’ apart in a location that receives full sun. This variety can reach heights of 8-12’ and has a width of 2-3’. The blooms will reach maturity in 80-90 days and are suitable for planting in USDA zones 3-9.
Easy to Grow - Instructions included on each packet. Plus, we are available to answer all your questions. If these seeds don’t germinate, we will happily make it right for you.
Pollinator and Bird Friendly - Bees love the nectar in sunflowers and will travel around helping pollinate your garden. Towards the end of the season, birds also love to come and eat the dried seeds.
Beautiful - Mammoth Sunflower (Helianthus var. 'Mammoth') seeds. These seeds grow crazy tall huge beautiful sunflowers with heights of 8-12 ft. The seeds are open pollinated and can be saved to plant year after year. Harvest and roast your own sunflower seeds. Minimum of 8g per packet (approximately 70 to 80 seeds).