Pruning - Knowledgebase Question

inver grove heights, Mi
Question by lavonne_robo
October 20, 2009
I have both a wiegela and forsysthia that branches seem to break easily near the base. Should these shrubs be pruned back this fall and if so how much?


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Answer from NGA
October 20, 2009

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Neither should be pruned in the fall. You can wait until late winter or early spring to prune your weigela, trimming it back by about one-third and then reaching into the center of the plant and removing some of the stems down to ground level. With less weight, the stems won't be so likely to break when the shrub is fully leafed out. You can also prune it immediately after it has finished flowering to further reduce the amount of stems and leaves.

Your forsythia will bloom this winter and then leaf out. You can prune it back after the flowers are spent. Forsythia will take any amount of pruning so feel free to clip off those weak stems at the base. Any new growth your forsythia puts on over the summer months will flower next winter.

Enjoy your colorful garden!

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