Underplantings for Potted Fruit Trees/Bushes/Vines
I have about 25 potted fruit trees/bushes/vines and was wondering if you guys thought it would be wise, and not harmful to the plants, to underplant taller fruit trees/vines/bushes with herbs or other low lying plants?
I'd be underplanting apples, peaches, pears, necarines, plums, figs, grapes, kiwi vines, apricots, mullberry, and maybe a few berry bushes, too.
My first thought was strawberries, but that would attract even more squirrels which are already very problematic.
Does anyone know of any specific plants, preferably herbs or something edible, that would work well as an underplanting for my fruit plants? I don't really care if the conditions aren't perfect for the underplantings, but I do care very much that the fruit plants won't be overstressed by competing for nutrients, root space, etc.
I am training the fruit trees into espalier form, so the underplantings should receive sufficient sun light.
Maybe having two competing plants in one pot is a bad idea all together?
What do you all think?