Q.Trimming large Hibiscus
My Hibiscus is very old and about 20′ tall and not sure how much and when would be best to trim. Any help is appreciated.

Downtoearthdigs
Answered on October 30, 2016
I must assume that you are referring to a Hardy Hibiscus or Rose Of Sharon.
This article will help you.
https://www.gardeningknowhow.com/ornamental/shrubs/rose-of-sharon/pruning-rose-of-sharon.htm
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