Over the years I've started a number of shade perennials from seed. Here is one of my favourities: Symphyandra hoffmanii. It grows to 60 cm in height and width, has lovely white bell-shaped flowers and simply blooms its little brains out. In fact, the plant may act like a biennial and die at the end of the second year, but fear not - there will be a tonne of seed that you can let fall, or share with friends. Symphyandra grows in either sun or shade and also can handle very dry and hot weather without looking the least bit wilted. It is almost annual-like in its period of bloom - once it starts at the end of June, I have blossoms often right into September. I got my seed from Gardens North outside of Ottawa and see that they still offer it. Its an easy germinator and will reward you with lots of flowers with hardly any effort at all - what could be better?