Can you grow morning glories? many of those are fast-growing vines that will cover a trellis or poles very rapidly. These are "Star of Yelta" and would have made a 10-foot-tall wall if I had made a taller trellis for them to climb on.
But some MGs are very invasive in some regions, they say! Mine never came back despite producing POUNDS of seeds. Mostly, the seeds rotted from fall rains, I think. Also, I turned that bed the next time I planted anything there. But some people talk about MG being very invasive.
