Mammoth Grey Striped - Sunflower Seeds - Organic


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If you're looking for a giant sunflower variety that produces delicious seeds, look no further than Mammoth Grey Striped Sunflower. This heirloom sunflower variety has been grown by many people for years and is loved for its 12-inch large heads and sturdy stalks that reach up to 12 feet tall. Not only does this sunflower attract pollinators, but it's also beautiful to behold. 4.5g ~ 50 seeds.

Plant seeds directly in the garden after average last frost date when soil has warmed up. Optimum soil temperature for seed germination is 60-75°F. Succession plantings can be made every 1-2 weeks for continued harvest. Or, start seed indoors 3-5 weeks before transplanting into the garden. Transplant to the garden 1-2 weeks after your average last frost date. Sunflower is sensitive to transplant shock so carefully set in the garden.

Scientific Name: Helianthus annuss
Days to Maturity: 85-95
Seed Depth: 1/2"
Days to Sprout: 10-14
Plant Spacing: 18-24"
Row Spacing: 24-36"
Light Requirements: Sunny
Plant Height: 9-12'
Life Cycle: Annual
Frost Hardy: No

Customer Reviews

Based on 1 review
Linda Rhea (Belton, US)

My daughter ordered them and hasn’t planted them yet 😆
Do you have Christmas ferns? 🤔

Hi Linda! We're glad to hear that your daughter ordered the Mammoth Grey Striped Sunflower Seeds. Whenever you're ready to plant them, we're here to help if you have any questions. While we don't currently offer Christmas ferns, we do have a variety of other seeds and products to explore. Feel free to reach out if you need assistance or recommendations for your gardening endeavors!

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    100% Non-GMO & open-pollinated. Germination tested meeting or exceeding federal standards.

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