Plant seeds outside after danger of the last frost have passed. Mammoth sunflowers can grow up to 10-12 feet tall with flower heads 12-24 inches wide.
Sunflower plants prefer full sun and rich, well-drained soil.
When the seeds are fully mature, they can be roasted for snacking, fed to wildlife, or served as a treat to your chicken flock. Don't forget to also save your seeds!
25 seeds included