Espalier Trees Advice and Pruning
Last year, I moved into my first house with a garden and, in my eagerness to get started, I purchased two fruit trees (a Morrello Cherry and a Victoria plum) to train a long a shady garage wall.
All went well: the trees are in the ground over winter, attached to wires in the espalier shape and starting to see flowers all over the cherry and nice healthy leaves on the plum.
But, I've discovered I picked the "wrong" root stock St Julian for plum and colt for the cherry both vigorous root stocks. I'm hoping because the garage wall is very shady apart from a couple of hours of sunlight the trees will not be too vigorous. What do you think?
Both trees are attached to the lowest wire of 3, spaced 300mm apart. The plum tree is particularly keen on growing from the top when I would prefer it to grow lower down for the second wires.
Is it okay to trim undesirable branches for throughout the year of do you have to wait for the autumn?