Grow towering blooms and tasty seeds!
Mammoth Grey Stripe sunflowers are the giants of the garden, reaching up to 12 feet tall with massive flower heads full of striped seeds. These cheerful giants are perfect for dramatic garden displays, seed harvesting, and feeding backyard birds. Whether you're growing for fun, food, or feathered friends, this sunflower brings big rewards.
Variety: Mammoth Grey Stripe Sunflower (Helianthus annuus)
Growth Habit: Warm-season annual
Height: 8–12 feet
Color: Bright yellow petals with striped seed centers
Planting Conditions: Full sun; well-drained soil
Bloom Time: 70–90 days
Uses: Edible seed harvest, bird gardens, ornamental displays
Fun Fact: These sunflowers produce large, edible seeds that are perfect for roasting, or sharing with your local wildlife!
If you're looking to make a statement in your garden, Mammoth Grey Stripe delivers. Its towering stalks and dinner-plate-sized blooms are a favorite among kids and wildlife alike. The striped seeds are delicious roasted and make a nutritious snack, while the blooms attract pollinators and birds. Plant a row and watch your garden turn into a sunflower jungle!
To Full Size
🌞 Choose a Sunny Spot: Full sun with rich, well-drained soil is essential.
🌱 Sow the Seeds: Direct sow ½ inch deep, spacing 12–18 inches apart.
💧 Water Regularly: Keep soil moist during germination and early growth.
🌿 Thin and Maintain: Thin seedlings to 18–24 inches apart for maximum size.
✂️ Harvest: Cut flower heads when seeds are mature and dry. Hang upside down to finish drying if needed.
