I have a seedling chestnut that died back to the ground every year. It grew back like a coppiced tree. I always removed all but one trunk which would die back again. I let them all grow this year and it grew great. I think I'm going to leave all the trunks. The tree I had planted for a pollinator didn't make it and I'd given up on this one and planted other trees within 12 feet. I no longer have room for two full sized chestnuts. I'm thinking of planting another tree 6-10 feet from this one and keeping them coppiced. Will this work for nut production? I don't mind if I don't get maximum production. I'm going more for variety. How many years until a coppiced tree will produce nuts?
Also I have a young Carpathian Walnut about 12 feet away. I haven't found a juglone tolerance list with Chestnut. Will it be a problem? I know that I'll probably have to thin some of my trees out eventually.