root pruning potted boxwood??
I have six boxwoods in 18" Mexican pots and I'm thinking that they are probably pot bound. They've been in these pots for at least 5 or 6 years and they are not holding moisture for very long. I've heard of "root pruning" but I've never done it. Any thoughts? I would prefer not to get bigger pots for the deck they are on.
I've also had the Mexican pots break apart when I try to get a pot bound plant out of them. I would like to try to save them - any way to prevent that? - although they're so inexpensive at the NorCal outlet, it's not a huge big deal...