Our Sunflowers grew beautifully this year. The kids and I planted the sunflower seeds in containers around April and left them in the greenhouse to protect them from the weather and cold for a couple of months. We eventually planted them in the garden in June when the weather was acceptable and I couldn’t believe how these beautiful giants grew to about ten feet tall!
When the heads are wilted and completely dry, cut the tops off and hang out to dry for a week or two longer. Before harvesting the seeds.