Artjak, I am not too Interested in annuals really. I grow some but perennials are what I prefer. Blue? Salvia patens, Anchusa, gentians, geraniums, caryopteris , ceratostigma, Teuchrium, delphiniums, lupins, taller salvias like guaranitica. All are true blue. Felicias and a penstemon called Eileen grenfell too. Mind you purple is good too.....as in osteospermums, which are fairly hardy with me. I really want long flowering. Well behaved true orange perennials to go with these and geums and heleniums...as obelixx suggests.....are possibilities