color palette for front garden

My front garden has always been a bit of a mis-mash. The previous owners left it without much design direction and I lazily allowed hostas to take it over and tossed in a new plant here and there. The best contributions I have made are a bleeding heart, which is flourishing, and some trilliums, which I love seeing in the spring. One shrub and two plants is hardly a vision though!

Inspired by an as-yet-to-be-spent gift certificate and a fresh color palette, I am working up a plan. To help me visualize my direction or at least the colors of choice, I have put together an "inspiration board" with images from magazines. I want to refresh our shutters and front doors by painting them a deep plum. Along with the plum, I envision some lime green-yellow with highlights of magenta and white. The magenta is mostly because I like it. The white is for contrast with dark purple foliage and flowers and to tie in the trim of the house.

Some day this summer I hope to thrill you with some "before" and "in progress" shots. The "after" won't really happen for a year or two when things get established. Meanwhile, let me know if you're interested in any hostas!