I'm planning a cutting patch on the allotment and have got a few seeds already but I'd like more ideas. So far I have rudbeckia cherry brandy, antirrhinum crimson, cleome, ammi majus, pink nicotiana, euphorbia for foliage, sunflowers and dark plum and black poppies.
I like dahlias but tried to grow from a tuber in the past and nothing happened.