I have a space that I need to fill under my windows. It is 15 feet long by 2 feet wide by 31/2 feet high. We had rhododendrons but grew tired of them, since we have planted many things that haven't worked. It is an area that gets a lot of sun.- I would like to have something that would attract butterflies and/or humming birds. Easy to maintain, beautiful all year, not just when they flower, and full.

Below is a website that will suggests plantings for butterfly gardens and then on the same page is a link for a songbird garden. Hopefully, you will find a plant in there that catches your fancy and will work well in a sunny location.