I would love to stay put for 5-7 years yes, that's the current plan. But due to my field of work, I could end up moving in a year or less. I've never stayed anywhere more than 14 months since I graduated college. I'm trying to stop that trend though.
How many years do most plants take to bloom? Is this too general a question for "most plants"? I could handle just growth this year (2012), if they bloom next year (2013), but I don't have much more patience than that.
What I think I will end up doing is purchasing a few mature plants that I don't need as much of, like the buttonbush I want, and the aquatic plants I need/want because a) I'm thinking wintersowing aquatics is different and/or harder than others and b) when I build my pond in spring I will need plants in it immediately.
Thanks for the suggestion about closer nurseries selling seeds also - there are a few species I'm looking for that are more Northeast/Atlantic coast that Prairie Moon shouldn't be expected to (and doesn't) have.