Mammoth Grey Stripe Sunflower Seeds – 25 lb Bulk (Non‑GMO)

Description

Tall Sunflowers with Large Blooms and High Yields

These Mammoth Grey Stripe sunflower seeds are non‑GMO, heirloom, and open‑pollinated. Each 25‑pound bulk pack is fortified with mycorrhizae, beneficial bacteria, and trichoderma to support strong root development and vigorous growth. Plants reach 8–12 feet tall and produce 10‑inch blooms that attract butterflies and hummingbirds. Sunflowers mature as annuals and can be grown for ornamental use or seed harvest.

Key Features

• Seed Type: Mammoth Grey Stripe Sunflower (Helianthus annuus)
• Non‑GMO: Heirloom, open‑pollinated variety
• Bulk Quantity: 25 lb pack for large‑scale planting
• Plant Traits: 96–144″ tall with large 10″ blooms
• Pollinator Friendly: Attracts butterflies and hummingbirds
• Uses: Cut flowers, seed production, and wildlife gardens
• Growth Cycle: Annual species; thrives in full sun