Posted: 09/06/2013 at 10:23
Last year I sowed countless seeds from a specialist firm to little avail, .eventually I decided that as well as poor weather the birds we having a feast so I covered with fleece until they had germinated and got established. Didnt have much growth or any flowers. Decided not to cut down in the Autumn and just left. This year they are great and we have at least 9 or 10 different species in flower at the moment. So - just don't give up on them.