My bamboo won't grow!
We planted three Yellow Groove bamboo clumps to serve as a screen in front of our hot tub. We live in the Wasatch foothills outside of Salt Lake City. This is the 3rd summer for the bamboo, and it hasn't grown taller or spread -- at all! One of the clumps has actually gotten shorter than when we planted it. Each spring some leaves/canes are dead and we prune them out, but most are alive. We can't figure out why the bamboo is merely "existing." This bamboo is supposed to grow in part sun. However, from early fall through March, ours get no sun, as a mountain peak blocks the sun from our property. The rest of the year the bamboo gets only morning sun. The coldest winter temperature we have experienced is about minus-5. Sometimes we get a lot of wind. Do I need to move this bamboo into a sunnier area? Add acid and/or compost to our alkaline, sandy soil under the bamboo? Fertilize more than normal? We water twice a week -- should we water less often? Any ideas would be very much appreciated -- we love bamboo and there aren't many other options for a natural screen in this location.