posted 9 years ago
It depends a lot on the type of tree and especially the rootstock. Peaches are the least tolerant of wet soils. Plums and apricots are often grafted on peach rootstock. Some plum rootstocks can stand wetter soil. You can get peach on plum rootstock. Some apple rootstocks stand more than others. If you want fruit trees, I'd try Raintree Nurseries or Edible Landscaping. They tell you what rootstocks they use on each tree and some fruits have more than one type to chose from. I believe Stark Bros is in your part of the state. They are a good company and have good trees, but I've tried a couple time to find out what rootstocks they're using and they couldn't tell me.
Pecans are grown on flood ground here. A lot of natives can stand wet soil. Redbud and dogwood don't seem to like it though. Guess they do better on hills. If you just want shade, willows grow around the edges of ponds, partially in the water. There are varieties that don't get huge. Cyprus are awesome trees. I've never grown one though.
A few inches of built up soil can help a lot. Does the water stay in puddles or run off? Healthy grass is a good sign. What are you wanting to do? Fruit, nuts, shade, or ornamental?