Posted: 09/07/2013 at 10:39
I live in Orkney I planted alstromeria ligtu hybrids from seed. They seeded all over my herbaceous border reverting back to species. I have had to dig up the whole border, taking barrowloads of thick white tubers out of the ground. I would certainly not plant them again . Maybe pots are the way to go. The tubers are two spits deep right down in the clay subsoil. I think I will be digging them out forever.