Greenbean, there are many varieties of hostas, all of which will thrive in shade as long as it isn't too dry. To avoid slugs, mulch heavily with gravel, or grow in the biggest pots you can, underplanted with bulbs such as narcissi, which will flower and die back early. Many hostas produce striking flowers of cream or lavender, and have a wonderful vaariety of leaves, some of which are huge.