My sunflower heads are leaning forward and now facing the ground. Is there anything I can do about this, or is it just a matter that the stalks aren't strong enough?

Hime-
Mine are doing the same-I think it's the heat & lack of rain. Watered mine pretty good early am-we'll see.
Patty

I've been watering mine like crazy, but I don't want to make all the dirt runoff.