What is an Espalier?

es·pal·ier[iˈspalyər,-yā] is a fruit tree or ornamental shrub

whose branches are trained to grow flat against a wall, supported on a lattice or a framework of stakes.

(Espalier=격자나 다양한 골조형의 전면에 좌우로 가지들을 유인/고정시켜 키운 과일나무나 장식용 관목나무들의 통칭)

                                            (농부 풀이)