In my area of Northern Virginia, boxwood have had new leaves for six weeks or more already. Buds that were set last fall extended at the beginning of April, give or take a little, and the trees have had time to recoup some of the energy that was used for that spring push. The new growth is still somewhat tender — not fully hardened off — but this also means it is still easily distinguished from last year’s growth. This is one of the reasons I think now is a great time to do some refinement pruning.
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