when is the best time to prune the following azalea, rhododendrum, boxwood, barberry, spirea, flowering dogwoods, assorted perenial grasses, wigelia, red maples, viburnum, lilac, and when if possible can you prune arbs |
The best rule of thumb is to prune flowering shrubs immediately after they have finished blooming. Non-blooming shrubs should be pruned in the early spring, just as new growth begins. Ornamental grasses are typically pruned in the early spring, too. Hope this information is helpful. |