Grow towering summer blooms with 100+ Mammoth Sunflower Seeds (Helianthus annuus), a giant variety reaching up to 10–12 feet tall with huge yellow flower heads. Perfect for pollinator gardens, privacy screens, cut flowers, or edible seed harvests, these easy-to-grow seeds thrive in full sun and well-drained soil.

1. ✔ 100+ Mammoth Sunflower (Helianthus annuus) seeds
2. ✔ Giant sunflowers grow up to 12 ft tall
3. ✔ Attracts bees, butterflies, and birds
4. ✔ Great for pollinator gardens or seasonal privacy
5. ✔ Non-GMO seeds, easy to grow in most zones

• Common Name: Mammoth Sunflower
• Scientific Name: Helianthus annuus
• USDA Hardiness Zone: Annual (zones 3–10)
• Bloom Color: Yellow
• Foliage Color: Green
• Soil Type: Well-Drained
• Sunlight: Full Sun
• Watering: Moderate
• Growth Rate: Fast
• Mature Height: 8–12 ft
• Bloom Season: Summer to Early Fall
• Days to Germination: 7–10 days
• Days to Bloom: 75–90 days

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Type: Seeds

100+ mammoth sunflower seeds , giant helianthus annuus variety , grow tall sunflowers for pollinators privacy screens & bouquets
Ships from: USA
Vendor: Rizki Garden