Frank - As far as I know, making multi species tree (even prunus) can be a bit tricky. The fun part is making sure the interstems are compatible with below and above stock. I know it can be done, but it was a massive info search to find out what species are good for what varieties. Although, it would be way harder if you threw some cherry in there..... The other thing I see, is that the peaches will probably out grow the rest of the tree., and may end up being shaded, because of the usual 2/3 pruning you usually do to peaches in spring. I know most apricots can be grafted to peaches, and I do belive some plums can be grafted to apricots ( there is a difference between japanese and euro plums for this AFAIK)

It looks like borage to me too. Does it have hairy leaves and stems? And does it have a cucumber taste? If so, it probably is the annual herb borage. Once you plant it, it keeps coming back every year and is a favorite herb for bees. Here is some information on borage: Hardy Annual Height: 18" - 36" tall Root: Fibrous, shallow Stem: Hairy, hollow, succulent, branching Leaf: Oval, pointed, alternate, roughly, hairy, 4" long and 1-1/2" wide Flower: Five intensely blue star shaped petals, prominent purple stamen column, flower to 1" wide in drooping clusters. Blooms April through October Seed: Black And some uses for it: In the kitchen, tender young leaves and stems are chopped and added to green salads, spreads, and fruit and wine drinks, imparting a cool cucumber flavor. Scrape long hairs from large stems and chop before adding to salads or steeping in beverages. Floating borage flowers in punch bowls and summer drinks is a tradition, and they are especially striking frozen in ice cubes. For an unusual, striking cake decoration, dip borage flowers in egg white, coat with sugar and dry.

I have had a number of plants that did the multisplit. I had a grove farm that split 14 times in about 2002. I let it grow naturally but the number of arms seemed to limit the development. The smaller branches became weak and the plant was not doing as well as others. It did not survive the frost this year. Then I had a cindy moragne seedling that split 17 times. I picked out the best looking three branches and cut off all the others. that plant flowered beautifully with a new flower and is now over five feet tall. I now believe that 4 branches is the maximum for a stem to support and three is best. Bill Grove farm:

I was told that all Mulberries bear fruit, this one doesnt & It also doesnt flower, because I at first thought it might be a paper mulberry. it is also covered in coarse white hair,leaves, branches, everything. which I couldnt find a mulberry that had hair on it