Dwarf globe blue spruce
I have had two dwarf globe spruces in my garden for quite awhile. One of them is beginning to grow much faster than the other and is now outgrowing it’s space and spreading out over the garden border. Can I safely prune it? If so, when is a good time, and how do I do it? The three pix show 1) both plants, 2) the larger plant outgrowing it’s space, and 3) the back of the larger plant Thank you for any advice you can give me. Thank you for providing this service despite the Coronavirus pandemic.
Baltimore County Maryland
This plant does not require a lot of pruning. Prune when you see new growth and trim back the new growth of the current season. Needles only grow from the growing tips out and will not develop on the interior branch wood without needles. Do not prune back into bare wood.