Espalier Pear Trees on a Brick Wall

Espalier is the old gardener's trick of training a fruit tree flat against a wall. The brick soaks up the sun during the day and gives the warmth back at night, which helps pears ripen in cooler places. The pears on this old wall hang from branches trained in neat level tiers, giving the pear tree jigsaw puzzle a tidy grid. Kept pruned, a tree like this can go on fruiting for generations.