Mammoth Grey Stripe Flower

Mammoth Grey Stripe sunflower is one of the most impressive sunflowers you can grow based on sheer size. Rising up to 12 feet tall with a single stem, the blossom grows 10 to 12 inches in width. They are very impressive in the garden, and children love to see them grow. You can eat the seeds when ripe or allow the birds to eat them. Plant in full sun. Plant ½ inch deep after the last frost and when soil temperatures reach 55 degrees. Plant 20 inches apart. Attracts pollinators. 90 to 100 days.