prunning - Knowledgebase Question

muskegon, Mi
Question by michael_j_zi
June 29, 2009
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

Answer from NGA
June 29, 2009


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.

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