Giant Mammoth Sunflower Seeds – Tall Variety, 50 Seeds, Yellow
Giant Mammoth Sunflower Seeds grow tall, vibrant blooms ideal for garden borders or bird feeders. These seeds consistently produce 8-12 foot tall sunflowers with 10-14 inch flower heads. Backyard gardeners choose this...
Giant Mammoth Sunflower Seeds grow tall, vibrant blooms ideal for garden borders or bird feeders. These seeds consistently produce 8-12 foot tall sunflowers with 10-14 inch flower heads. Backyard gardeners choose this variety for reliable germination and rapid growth.
Why Choose These Seeds
- Large flower heads — 10-14 inch blooms attract pollinators and produce edible seeds, ideal for gardens wanting wildlife activity
- Fast growth rate — reaches 6 feet in 60-75 days when planted in full sun, providing quick garden impact
- High germination rate — tested at 85-90% viability when stored properly, reducing wasted planting effort
- Drought tolerant — established plants withstand dry periods better than many ornamental flowers
Seed Information
100% untreated sunflower seeds (Helianthus annuus). Store in cool, dry place until planting.
Package Contents
50 Mammoth Sunflower seeds in resealable moisture-proof packet
Growing Specifications
Seed count: 50Mature height: 8-12 feetFlower diameter: 10-14 inchesDays to maturity: 75-90Plant spacing: 18-24 inches
Free shipping on all orders within the United States. Orders typically process within 1–3 business days. Live plants are packed carefully to protect foliage and roots during transit.
If your item arrives damaged, contact us within 48 hours with photos for a replacement or refund. See our full return policy for details.
