Hi Sherry Showing a picture of your tree will be extremely helpful! There are great instructions on the Conversations page. Once you get the hang of posting your pictures, you might get addicted to it, like me! Click on the link. Susie Here is a link that might be useful: photo insturctions

My ninebark is the species. It grows to about 8 or 9 feet. It's just finished blooming, and while most of the fruit capsules are brown, I have some individuals whose capsules turn red and stay red all summer. Very pretty. Chokeberry is Aronia. I have mostly A. melanocarpa, because I can buy it. Slow growing, but pretty. Coralberry is not the same as snowberry. Same genus, different species. Snowberry is much taller (up to about 4 feet) and doesn't sent out runners. Coralberry stays maybe 2-3 feet tall and sends out long runners in all directions that root. It's good for my islands because it fills in quickly. I plant shrubs very close together--a foot or so. I want the islands to look crowded, and they do after a year or so. I'll try to post some pictures. Most species shrubs do have white flowers. If you're going to go natural, you start to think in terms of what the pollinators like, and they obviously are attracted to clusters of white flowers. I think it's fascinating that the second each species finishes blooming another takes up the slack. It seems to be timed so they don't compete for pollinators--first serviceberry, then crabapples & C. florida, then chokecherry and chokeberry and black cherry, then ninebark, then early viburnums, then shrub dogwood, then later viburnums, then elderberry. I find it fascinating, and I no longer get tired of white flowers.

Sorry it took so long to answer this, but Mail Order Natives shouldn't be far from you and they have many good butterfly plants.

Ludwigia, perhaps. Start with looking at Ludwigia octovalvis.