Pruning New Box Hedge
I sowed new box hedge in spring of this year. I would like to know when to prune it for the first time. It's about 18 inches tall, no new growth at the base of plant.
Boxwood, buxus, is best pruned mid-March IMO. Pruned just before flushing will eliminate bare stems and thin spots during the winter. this article should help: https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/trimming-boxwood-bushes.htm