Black Mammoth - Organic Sunflower Seeds
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Black Mammoth is a towering sunflower known for its dense heads packed with rich black seeds. Blooms can reach up to 12 inches across, perched on strong stalks that grow 10 feet tall or more.
It’s a bold, functional variety—useful for feeding birds, saving seed, or adding a striking vertical element to the garden. Originally bred for seed yield, it still turns heads with its sheer scale. Plant in full sun and give it room to stretch—this one’s made for the back row.
Every order is packed with care by our small team in Pennsylvania and typically ships within 2–3 business days—often by the next business day. We ship throughout the United States using USPS and UPS.
Unopened items may be returned within 30 days of delivery. If an order arrives damaged, incomplete, or incorrect, please contact us so we can make it right.
We stand behind every packet we sell. Our seeds are carefully selected, tested for germination, untreated, and guaranteed to be true to variety.
Your seeds are covered for one year from the date of purchase. If they fail to germinate under reasonable growing conditions, arrive damaged, or do not grow true to type, contact us and we’ll make it right with a replacement, store credit, or refund.