It doesn't bloom... It is 9 yrs old ...It gets buds but no blooms.
Certified GKH Gardening Expert
This is a common issue with climbing hydrangeas. many times it will be reluctant to bloom, if the plant has too many vines to support. You should cut some of the less established vines after the bloom buds stop forming. I noticed the cleome near it is in bloom, which leads me to believe that there is sufficient nutrients in the soil to support blooming. One more option is to apply dolomitic lime to the soil, which will control the pH of the soil, and sometimes that is all that is the issue. Otherwise, if you are in doubt of the fertility of the soil, you may feed with a general purpose fertilizer. Here is a link that will help: https://www.gardeningknowhow.com/ornamental/vines/climbing-hydrangea/climbing-hydrangea-wont-bloom.htm