pruning lady in red - Knowledgebase Question

Concord, Ca
Question by jchunn
August 9, 2008
this plant is really spreading out. the bloom is over. it was suggested at this time to prune to within 12 inches of the ground. is now the time to do this and is it OK to prune it way back to a manageable size?

I appreciate your help.

James Chunn

Answer from NGA
August 9, 2008


Pruning is not necessary, especially since ?Lady in Red? is a compact form. If you want to prune to improve the shape of the plant, be careful to prune shortly AFTER flowering because flower buds are formed on the previous season?s growth. Prune these hydrangeas only in the summer before July/August to be sure that you are not cutting off the stems that hold the flower buds for the next season. This hydrangea blooms on OLD WOOD, stems that have been on the hydrangea for at least 9-10 months, and sets its flower buds in late summer/early fall for blooms the following spring.

Sometimes some hydrangeas will defy this general rule, but for ?Lady in Red?, be careful of your time of pruning to ensure blooms in the next year.

For older plants, older than 4-6 years old, the general rule is to remove about a third of the old wood by cutting them down at ground level during the summer. This allows for more light into the plant and it helps revitalize the plant?s new growth.

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