I live in solebury,PA. i would like to buy White Mulberry Trees from a nursery in NJ or PA. I am not successful calling every nursery for mulberry trees. Do you know a nursery that sells mulberry trees.
The white mulberry tree is considered an invasive non-native tree in most, if not all, of the US. Although there are non-fruiting cultivars, they are probably only offered through specialty nurseries, due to the deservedly poor reputation of Morus alba. Since they are so weedy, you could probably find one along a roadside somewhere, if you absolutely must have one.