Site and Support. Climbing hydrangea grows in full sun or partial shade. The plant isn't particular about the soil as long as it is well-drained and not too alkaline. The leaves turn yellow when the pH is too high.What does climbing hydrangea mean?
Climbing hydrangea is one of the few hardy flowering vines that tolerate shade . In hot climates, choose a location where the plant will get some partial shade. In the cooler regions of the South, the vine will usually do well in more sunny areas, if adequately watered. Climbing hydrangeas that do get more sun tend to bloom better.