Home › Words › W › wallplantwallplantwallplant · noun — A plant that grows on a wall.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom wall + plant.nounA plant that grows on a wall.e.g.“A[ethionema] grandiflorum. As above. A strong wallplant true from seed. Long lived or deep pink specimens merit cutting propagation.” — 1959, Lawrence D[onegan] Hills, “Dictionary of Propagation — Seed”, in The Propagation of Alpines, 2nd edition, Sakonnet, R.I.: Theophrastus, published 1976, →ISBN, page 194:Definitions & examples from Wiktionary (CC BY-SA 3.0).