I have planted some Mimosa seed that were taken from a tree that was growing in the wild. All the seeds came up, there were eight of them. They are now about 1-2 inches tall and look healthy. I have them in 1 gallon pots, two in each pot. Can someone tell me if I should fertilize them or just let them grow as is? Should I spray them for insects?I used potting soil without adding anything at all to the soil. I really want them to grow and don't want to hinder their growth at all. I don't want to get too aggresive and do things that I should not do to them. Does Mimosa roots grow deep or spread out. I live in South Louisiana. All the Mimosa trees here died a good many years ago from a disease, they are just now coming back. Thanks for your help.