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Home > Annuals > Sunflowers > Mammoth

Approximately 30 Sunflower Mammoth seeds per packet

A tall plant with massive flowers.
The Sunflower Mammoth grows upwards of 12 feet. The flowers will range from 6-15" inches. This sunflower is very easy to grow and can thrive in poor soil with little moisture.

Product Details
Zones: 3-9
When to Sow: Spring after last frost
Planting Depth: 1/2" inch of light soil
Plant Height: 10-12 feet
Blooming Period: Midsummer through fall
Spacing: Space 18-26" inches between plants
Sun/Shade: Full Sun
Germination: 10-15 days
Comments: Birds love the seeds and these tall giants make a nice privacy fence in the summer.
Buy Sunflower Mammoth Seeds