Never seen a red mulberry, I am very familiar with hicks (black) and white mulberry though.
I've got a hicks cutting in a 400mm diam selfwatering pot in my backyard , and a couple or white mulberry seedlings in another similar pot.
WIll take several years before they are big enough to transplant into the backyard and several more years before they are big enough to harvest leaves from. I bought the seedling and cuttings on ebay about 18 months ago along with a load of other berry plants .... all in 400mm diam selfwatering pots , will eventually have a micro berry and fruit orchard in my backyard - I love berries and fruit (esp hard to find tropical fruits like sapotes etc). Don't forget to harvest some of the berries when they are ripe , the are very yummy either straight off the tree (was a real treat for us in summer as kids - we'd raid a big ancient mulberry one of the neighbours (had to over 100 years old - was huge !) it had that had large branches overhanging a big vacant lot - we'd go to the vacant lot and collect buckets full of mulberries (and eat loads of them in the process) , great with other summer berries , on pavlovas, and in tarts and pies, some of the moms even made bottles of mulberry wine and mulberry jam.
Fresh berries are VERY EXPENSIVE to buy in supermarkets in tiny tubs , doesn't stop me from buying dozens of tubs of berries or all sorts in summer just before Xmas when I do make homemade family sized berry pies or all kinds and mixtures for us to freeze and eat over the year and to give as gifts to family and friends .... I'll usually do about 12 - 16 berry pies , and last summer I invested in a nice Kenwood Chef mixer which came with an icecream maker as a freebie , so I started making berry sorbets and icecreams too (we keep these for ourselves ... too tasty to give away).
I expect red mulberry will be just as tasty.
The berries are also a great treat for the beardies too.
