Sunflower Large Grey Striped - Ontario Seed Company
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Helianthus annus
Also known as Mammoth Grey Stripe. If you want to grow the champion sunflower for all the fall fair, this heirloom variety is the one to choose! Huge, single yellow blooms ranging from 25-35cm (10-14") in diameter are produced on tree trunk like stems that can easily grow to 3m (9') or more in height! This is the best variety for feeding the birds as well as for roasting seed for yourself! Taller plants may need staking due to the weight of their mighty seed heads!
Annual
Approx. 50 seeds/pkt
How to Grow
Easy to grow. In late May, choose a sunny site with well draining soil and sow seed about 6-12mm (1/4-1/2") deep and 7.5-10cm (3-4") apart. Thin or transplant seedlings to 30-45cm (12-18") apart. Seed can be started 2-3 weeks early indoors using plantable peat pots or Jiffy 7's at 21C (70F). Harden off seedlings then transplant to a site in full sun. Keep plants evenly watered and fertilize twice during the season with a granular 15-5-15 or equivalent.
Canada Shipping
All regular packaged seed* orders have a flat rate shipping fee starting at $6.85 for Letter Mail shipping and $14.85 for Expedited Shipping.
*Some Bonus Packs, Sprouting Seeds, Bulk packs, Sprinkle Bags, and Sprinkle Cans will only be available with Expedited Shipping due to larger packaging and weight.
US Shipping
US Shipping has been suspended indefinitely. We apologize for any inconvenience this may cause. We hope to serve our US customers again in the future.
