Heirloom and Open-pollinated seeds
  • Mammoth Grey Sunflower


    Helianthus annus

    Min Qty: 10 g

    Description: Cheeful addition to your garden. This variety of giant, single-stem sunflower with large seed heads typically grows 6-12' high. Bumper crop of delicious seeds that are a hit with kids, squirrels and birds alike!

    Planting Instructions: 120 days. Plant in well-prepared soil after the danger of last frost and soil temps warm up to 70F. Choose a location that gets at least 6 hours of sunlight a day. Sow clusters of 3 or 4 seeds each in holes 1-1/2" deep, 12" apart. Thin seedlings to the strongest plant when they're 3-4" tall (cut weaker seedlings with shears rather than pulling them to prevent disturbing the root structure of the strongest seedling). Mound soil up around remaining seedlings. You may need to stake the stalks when the heads become heavy to keep them from falling over. Cover the flower heads with cheescloth once the petals fall off to allow the seeds to dry and to prevent birds from snacking early.