Wow Mika I have never tried from seeds. Do you need a special set up? Not sure if I could handle that. You need a permit to import seeds here. So I don't get the ones from the British Iris Society. I have not be able to make a cross for them the last couple years. I should try it again. Perhaps I will try plants here again. There are problems with slugs with hosta. Grit around the plants could help there.
