Trimming citrus roots
Hi there, I am new to the forum, and I have searched for the answer to my question and I can not find it anywhere (here or anywhere else).
I have two citrus trees, a ponderosa lemon and a variegated calamondin. Since I live in PA both of these plants need to stay in pots. The problem I am having is both plants are out-growing their pots and I need to find a way to "bonsai" them to stay in the pots I have for them. The pots they are in are pretty big and the reason they need to stay in them is because that is the biggest I can handle carrying in and out of the house for summer and winter seasons.
I have heard of trimming roots to keep plants, in general, happy in pots. Does anyone know how I would go about doing this? I heard one source say to trim 1/3 of the roots, but they were not talking about citrus trees. I know there is a tap root I need to be aware of, but would this mean that I cannot trim that one?
My ponderosa is pretty hardy and I am not too worried about it bouncing back from me trimming the roots, but my calamondin can be finicky sometimes and it was an expensive plant that I really love. Thank you in advance for all of your help and advice.....