I was just munching on some the other day from a huge old tree while out on a walk with the granddaughters. That old tree is probably 30'-40' tall and has been producing fruit since mid-June. It has already peaked in fruit production for the year, but I still see new fruits on it even now. I don't mind them for just eating a few while out walking around and the twins liked them as well after they got past the initial tartness. The walk path that passes under it is a completely different shade compared to the rest of the asphalt on that trail, way darker due to the purple coloring of the fruit permanently staining the path. Baby mulberry plants all up and down the length of the path due to people stepping on the fruits and the seeds sticking to the bottom of their shoes as they walk and then depositing them further up the trail. Same thing about 300 yards up the trail, another large old mulberry that doesn't produce quite as much fruit due to it being shaded by craploads of silver maple, black ash, and huge cottonwoods.