Pay in installments of $5.48 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 2 - Sep 7
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
mammoth sunflower seeds to plant Mammoth Sunflower Seeds For Sale – Grow Majestic Giants in Your Garden – Gardeners BasicsMammoth Sunflower Seeds Heirloom, Non GMO, Non Hybrid, Open Pollinated Grow towering Mammoth Sunflowers with our premium, heirloom, non GMO, non hybrid, and open pollinated seeds! These stunning sunflowers reach impressive heights of 8 to 12 feet, producing massive yellow blooms with seed heads up to 12 inches across. Perfect for attracting pollinators, creating a beautiful garden backdrop, or harvesting delicious sunflower seeds for snacking or
Mammoth Sunflower Seeds – Heirloom, Non-GMO, Non-Hybrid, Open-Pollinated
Grow towering Mammoth Sunflowers with our premium, heirloom, non-GMO, non-hybrid, and open-pollinated seeds! These stunning sunflowers reach impressive heights of 8 to 12 feet, producing massive yellow blooms with seed heads up to 12 inches across. Perfect for attracting pollinators, creating a beautiful garden backdrop, or harvesting delicious sunflower seeds for snacking or feeding birds.
Each packet contains 8g of seed, approximately 125 seeds.
Planting & Growing Instructions:
• Days to Maturity: 75–90 days
• Planting Depth: 1 inch
• Plant Spacing: 18–24 inches apart in rows spaced 2–3 feet apart for best growth.
• Days to Germination: 7–10 days with soil temperatures of 70–85°F.
• Sun or Shade: Full sun is essential for optimal growth and large blooms.
For best results, sow seeds directly outdoors in well-drained soil after the last frost. Mammoth sunflowers thrive in warm weather and benefit from being planted in a sunny, wind-protected location. While starting seeds indoors is possible 2–3 weeks before the last frost, these vigorous growers prefer minimal transplanting. Once established, water regularly, especially during dry periods, to support their rapid growth and large flower development.
Ideal for gardeners of all skill levels, Mammoth Sunflowers add natural beauty, provide edible seeds, and help sustain local pollinators. Our high-quality seeds ensure reliability, making them a must-have for any garden project. Shop today and bring these iconic giants to your garden!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy