I love the Irises, pickerel weed, and variegated sweet flag, as well Lizard's tail! Bill gave me starts of irises, variegated sweet flag, and Lizard's tail last year and they are doing very well! I ordered 25 young pickerel weed plants off etsy last year for around $25 total and they are doing great as well, looking real healthy coming up this year. I have also gotten some Marsh marigold I need to get planted this year and see how it does.

[Linked Image from lh6.ggpht.com]