Sow Right Seeds Mammoth Sunflower bulk packet ready for full-sun planting to attract pollinators.
Mammoth Sunflowers rise tall in the garden, creating a dramatic focal point for outdoor spaces.
Close-up of sturdy Mammoth sunflower head signaling a future giant bloom.
2 oz packet containing about 740 seeds for steady garden planting.
Bees visit tall stalks, supporting pollination and a lively garden.
Birds enjoy dried seeds later in the season, supporting wildlife.
Non-GMO heirloom seeds from Sow Right Seeds promote sustainable gardening.

Sow Right Seeds

Sow Right Seeds Mammoth Sunflower Seeds - Bulk 740 Seeds (2 oz) for Giant 8-12 ft Sunflowers - Non-GMO Heirloom

High-performance patio lawn and garden made for confident daily results

$12.51

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Why customers choose PatioZora Garden

Overview

Bring drama and pollinator support to your outdoor space with Mammoth Sunflower seeds from Sow Right Seeds. This bulk option is ideal for gardeners who love a fast, gratifying result: open-pollinated and non-GMO heirloom seeds that mature into towering sunflowers with bright yellow petals and dark centers. When planted in full sun with good soil, these giants can reach 8-12 feet in height and establish a broad 2-3 foot bloom spread, creating a bold focal point in any garden.

Germination and growth

Germination typically occurs in 7-14 days as soil warms to about 70-75°F. Sow seeds about 1 inch deep and space plants roughly 3 feet apart to give each stems and heads room to develop. Expect blooms to mature in 80-90 days, with best performance in USDA zones 3-9.

  • Bulk jumbo pack details: 2 oz per packet, approximately 740 seeds; great for large beds or community plots
  • Open-pollinated and non-GMO heirloom genetics that can be saved for future seasons

What you get in this bulk pack

  • Bulk seed quantity designed for repeat planting and extended harvests
  • A reliable open-pollinated option suitable for seed saving and year-to-year growing

Planting and care

  • Choose a sunny location with 6-8 hours of direct sun daily for robust growth
  • Prepare well-drained soil, plant about 1 inch deep, and space 3 feet apart
  • Water evenly, mulch to conserve moisture, and provide sturdy support if winds are strong

Uses, harvest, and wildlife

  • Harvest the large blooms for striking garden visuals or seasonal cut arrangements
  • Save seeds for roasting or future planting, enjoying a self-sustaining garden loop
  • Bees are drawn to the nectar-rich blossoms, while dried seeds attract birds later in the season

Sustainability and trust

  • Solar-powered production facilities and a commitment to the Safe Seed Pledge
  • Non-GMO heirloom seeds designed for long-term garden resilience and easy seed saving

FAQ

Q: What makes Mammoth Sunflower seeds stand out?

A: They reach 8-12 ft tall with a 2-3 ft spread and are open-pollinated heirloom seeds.

Q: How many seeds are in the packet and when will they germinate?

A: Each 2 oz packet contains about 740 seeds; germination occurs in 7-14 days in warm soil.

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