Thanks, I will have a look.
The big head Russian varieties may be what you are looking for.
But I see where the MONGOLIAN GIANT SUNFLOWER may have the biggest seeds.Bondie Seeds has them.But sold out. Guess it's a job for eBay
Thank you very much!
Could always try sprouting some of the bird sunflower seeds you like. Not sure if they're F1 or anything, but they do seem to sprout.
They are usually quite small. I am looking large seed. Thanks.