How can you reattach climbing hydrangea to a stucco wall?

Hydrangea have air roots that will attach themselves to walls, but if you need to reattach them after painting the wall or some other maintenance use small blobs of clear calk or silicone with a piece of wire pushed through it while wet. Wait for the silicone to harden and wrap the wire around the vine to hold it against the wall until it reattaches itself.