The old guy next door saw my weasel-like mulberry and advised me to graft quickly before they started to draw the ground water in spring. After talking to him for a while I came to understand that in the old days the mulberry saplings were in fact started from seed and then had a hybrid sprig grafted on after two years because saplings from cuttings would have a weak root system. Hmmmmm.
I grafted on some twigs from my favorite monster mulberry tree near the river. I later paraffin waxed the graft to keep the graft point moist.
This is a pretty specific post but someone out there might just find this information handy.