The Q&A Archives: Climbing Hydrangeas

Question: Hi:

I am planning to plant climbing hydrangeas against a 5 foot wide trellis that is 8 feet high. Ultimately I want to keep it within the bounds of thet trellis. How many plants will I need? Would one in the middle be sufficient? What sort of pruning will I have to do over time?

Thaks for your help. I would appreciate a speedy response.

Leigh Firn

Answer: A single climbing hydrangea is all you'll need to cover your 5 x 8 foot trellis. After planting, you'll want to give your hydrangea 2-3 years to become established and no pruning should be necessary during that time. In fact, as a rule, climbing hydrangeas require little or no pruning. If shoots grow out of bounds, reduce their length in summer. Aside from that, you can remove spent flowers if you find them unattractive.

Enjoy your garden!

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