I have an excess of ornamental plants that I would love to trade for other perennials:

Calla lilies (mostly yellow)
Daffodils (locally called Easter lilies, yellow)
Asiatic lilies (a few varieties, some 18" tall and some closer to 36")
Irises (mostly light purple, I have literally hundreds of them!)
Autumn Joy sedum
Purple Heart setcreasa
Plum tree saplings
Mondo grass (great for borders)

I also have Parrot Feather for ponds. It's great for keeping the water clean, but it grows fast so I end up throwing a lot of it away every year.

I have a "hardy hen and chick" that I THINK is a Jovibarba heuffelii cultivar, and I can split off chicks.

And I have a TON of Devil's Trumpet seeds. The plants produce black flowers, and so far every seed I've planted has come up.

I would love to trade for any type of coral bell, Bleeding Hearts, primrose, irises that aren't light purple, astilbe, bee mint, rhododendron, gardenias, camellias, hydrangeas, succulents that can survive the zone 7 winter, and any other type of lily, but I'm really open to any other perennial. I'm also interested in hot pepper seeds (orange habanero or hotter).