I have a Parthenocissus quinquefolia which I planted when it was about three
foot high in order to climb up a shiplap wall which has been painted with
black
Sadolin.

The creeper refuses to anchor itself to the wood. It produces its little
'feet' to grab with but they never take hold and the only way I can get it
to grow upwards is to put wire across in its path.

Do you think the Sadolin is something it doesn't like or is there some other
problem?

Rob Graham