London, United Kingdom
We are building a brick pillar pergola, 10 in total, each pillar about 1 1/2 bricks x 1 1/2 in width. How much space do I need at the foot of each for planting climbers, how deep and would 2 climbers per pillar be too much? Probably deppends on the plant: a wisteria, for example, only 1 per pillar, whereas a clematis / honeysuckle 2 perhaps? Thanks.
- 25 Aug, 2012