Three sided plant stand for against a wall.
The close-up pictures show how this stand was constructed. It has 9 green Leylandlatches staggered down three sides of the upright. Plants face in three directions, but it would easy to have them on the back if the location warranted that. The red marks of the tape measure are 10cm (about 4 inches) apart. Of course, you can alter the dimensions, materials and the placement of latches to suit your needs.