[Dobsonknob]

Anybody had any success late fall planting sunflowers and having them come up the next spring?

 

[Guest]

They aren't a perennial, so, I would expect them to freeze out.

 

[Dobsonknob]

OK

Wasn't sure if the seeds could survive in the frozen soil over the winter

 

[eyefromthesky]

The seeds can survive but you'd probably lose a lot to chipmunks, mice, birds, squirrels, ect. I've had volunteer sunflowers come up from overwintering seeds in the garden but I'm not sure what the survival rate would be on a big scale. You'd have to put them in late enough that you'd be sure they wouldn't sprout. I think what Dutch is saying is that if the seeds sprout in the fall they won't grow back in the spring. Maybe.