Posted: 23/03/2012 at 14:21
Hi for low maintenance interest, adding some tallish grasses would be a good idea - reliable ones that won't fall over and need almost zero care. I'd recommend Stipa gigantea and Calamagrostis x acutiflora 'Karl Foerster', which are both high-impact and provide interest all-year round. Definitely give some thought to when things bloom, so that you try and have a good spread across the year. Some spring bulbs will really add cheer, as others have suggested, and need so little care - snowdrops, daffs etc, maybe some alliums to give some drama in May/June? Also think about summer bulbs to help extend the season at the end. Gladioli don't have to be cheesy - there are some brilliant single colours like lime green and red-black, and some are supposedly hardy too so that you won't have to dig them up before winter. Crocosmia and asters (Aster x frikartii 'Monch' for example) are extremely easy, and give colour when most other things are fading. Sedums, too, are great for colour through into the autumn, are really, really easy, and the bees and butterflies just love them, too. Good luck!!