Clematis: A Vine which would look fitting in an Oriental Garden?, 1 by Clare_CA

Clare_CA wrote:
I would put a pretty brown half barrel there and stick the trellis inside and grow something there as an annual. Or he can grow wisteria there, but the others are right that it would have to be pruned in the winter. The white japanese wisteria, Wisteria floribunda, stays particularly small. Here is mine that I've had for three years now. I've never had to prune it yet.

Ask your neighbor what color he would like there. He could try different vines, treated as annuals, there to see what color he prefers.