Thanks, I do have the idea of which lilies bloom when. I have varieties that bloom early season and some up til late august. It is just hard because I need that certain window and I need enough to look good scattered across a 20' long area. I figure I need a minimum of 12, so it would cost me a small fortune* to buy enough to test different varieties out. I was looking at B&D lilies and saw a few candidates. The one that sounded most promising was Siberian.. The problem is cataogs list bloom seasons according to their zones and it is very broad like they list bloom season as July.
*I feel like you have to order how many you need at once because it is hard to find certain varieties from one season to the next. I have some lilies that I would never be able to find now..