Well, looks like in your seeds, you have one of each! Scarlet O'Hara is an I. nil, Grandpa Ott is an I. purpurea, and Heavenly Blue is an I. tricolor. Heavenly Blues hate me. I try starting them indoors and they all seem to die when I plant them out. Sigh. My understanding is that it's only I. nils that like to be fertilized, but I could be wrong about that. I'd always heard that if you fertilize other morning glories, you get lots of leaves and not a lot of flowers.
