I also plant sunflower seeds after the danger of all frost--usually the first or second week of May here, in zone 5a. Last year I decided I needed to try planting some things later to see what would happen. I planted a 4ft.tall variety of sunflower seed at the beginning of August, and had fresh sunflowers around the end of Sept./beginning Oct.
Hi Donald. I'm down by Mt. Vernon and I plant mine after Mother's Day. Good luck! I can't wait till spring! I saw HUGE flocks of birds this morning and they were coming your way!
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