Arlene, I got Mauve Majesty from Brent&Becky's last spring. I saw a mention on the website that they wanted to gain more info on culture of Alstroemeria, that gave me the impression they may not offer it again this year. The new catalog will be out soon, so we'll see. I just did some searching, as I thought I'd seen it offered elsewhere, but I'm only seeing results from sources no longer offering it. It is one of the few hardy to zone 5, but since you're in a warmer zone, you've got several more options- LazySS's is offering some nice looking varieties. I plan to try a couple from the "Inca" series this year.
JoAnn, once you've got some Larkspur growing, let them go to seed and sprinkle them around where you want them in September. They will germinate in fall and the seedlings just sit there and survive the winter with no problem, then in spring they have a jump start and reach nice heights and perform beautifully.