I have 4 concrete planters outside the back door that I don't keep plants in except weeds. Now one has a Pecan tree and another has a Walnut tree growing in them. The squirrels plant nuts every year but this is the first time in these pots. The pecan The walnut I broke the walnut but the tree shouldl be fineThey plant so many each year I usually pull them up or cut them with the lawnmower.but these two I will pot later. The squirrels were building a nest yesterday in the old maple tree getting ready for their second litter and they dropped a bunch of the cuttings all over the patio. I threw their cuttings in for Galloper to eat the fresh leaves.