'Red Sun' Sunflower growers.
Are your 'Red Sun' Sunflowers single or multi-flowered?
I have two of these Sunflowers and one , which is not far off opening, has about 6 flower buds and the other, which is no where near opening, only has one bud.
What are yours like?
I will try and post a picture of the multi-budded one later.
I think you'll find more heads as they grow. Its amazing how they keep producing more flowers.
Thanks Northener, just found some info on 'Red Sun' and see that it should be multi-headed :)