Hello, I'm planning a green wall for the front faÃ§ade of a building in Bellingham, WA. It will be covered with a stainless steel cable training system made by jakob (www.jakob.ch has some information if anyone is curious). I'm seeking some opinions on what to plant in a long planter on the roof that runs the length of the wall (so the climbers will be climbing down, not up) and a smaller planter at the base of the wall. Research so far has led me to the following: Winter jasmine (Jasminum polyanthum), Blue crown passion flower (Passiflora caerulea) and the evergreen Clematis (Clematis armandii). I need relatively fast-growing evergreens to cover the wall. I was thinking it might be nice to plant some annuals such as Black-eyed susan vine (Thunbergia alata) for seasonal interest. Does anyone have experience with these species in the northwest? Other suggestions on good climbers that are aesthetically pleasing? I know about Japanese honeysuckle (Lonicera japonica), but it seems like an invasive pest (although it doesn't appear on Washington's noxious weeds list), so I'm inclined to steer away from it. And oh yeah, no ivy or anything else too woody... Thanks!