Seeking to hide a bare wall or fence? Perhaps it is an unsightly old garage that plagues the eye. How about a now-neglected arbour bought at an impulse some seasons ago? There is, of course, the silver lace vine, Fallopia baldschuanica (formerly Polygonum aubertii), reputed to grow perhaps 25 feet in a single season – true, but only after establishing a supportive root system. Instead, leave the neighbours green with envy by planting Humulus lupus, the hop vine.