Mammoth Grey Stripe Sunflower Seeds | Giant Russian Sunflower Seeds | Helianthus annuus | 2025 Planting Season Regular Watering tropical feel to gardens and

tropical feel to gardens and landscapes

Flowering: White flowers with a green central band in spring and summer

Harvest Time: Fruits ripen in late summer

USDA zones: 10–11 (grown as annual elsewhere)

Mammoth Grey Stripe Sunflower Seeds | Giant Russian Sunflower Seeds | Helianthus annuus | 2025 Planting Season Regular Watering tropical feel to gardens andDiscover the beauty of the Mammoth Grey Stripe Sunflower, renowned for its towering height and impressive blooms. With these premium seeds, you'll receive everything you need to grow stunning sunflowers that can reach heights of over 12 feet! Perfect for gardens, landscaping, or as a natural privacy screen, these giant sunflowers will brighten up any outdoor space. Produces massive flower heads up to 12 inches in diameter. Fast growing variety, ideal