*Helianthus annuus*. New World annual noted for its large flowering head.
6
votes
1answer
230 views
What is the best sunflower for seed production in Pennsylvania zone 6b?
I have been growing mammoth grey stripe sunflowers for a while, but I want to know if there is a better producer for my climate. The area I would plant them in is a heavy, clay base soil. The average ...
9
votes
3answers
821 views
Are the seed pods of giant sunflowers normally empty?
So, I'm attempting to harvest sunflower seeds from some giant sunflowers I planted a coons age or two ago. Unfortunately, there's nothing inside the seed pods!
I believe the sunflower was a ...
10
votes
2answers
789 views
When should sunflower seeds be harvested?
I've got a few giant sunflowers that are hanging pretty low. I peeled off a few seeds around the outside just to see what they looked like and they look pretty big. They're fairly light though, not ...
9
votes
2answers
202 views
How do I provide support to a growing sunflower?
I am growing sunflowers and they grow quite high, sometimes toppling over. What kind of support can I give to them in this case?
