Boston ivy (Parthenocissus tricuspidata) is also cold tolerant, hardy in USDA zones 4 through 8. Repotting. Consider … Winterizing: Boston ivy winter care is minimal and consists primarily of pruning. Maintenance & Pruning: Prune the vines once each year (in late winter… Algerian ivy or Canary Islands ivy (Hedera canariensis) prefers slightly warmer climes, hardy … Boston-ivy, also called Japanese creeper for its country of origin, is a liana commonly seen climbing up buildings. It cannot handle winter … Unlike its cousin, Virginia-creeper (Parthenocissus quinquefolia), it has simple, lobed leaves. ... the winter bud is perulate (partially or completely covered with one or more scales) Winter bud stalks the winter … Boston ivy is somewhat less hardy than Virginia creeper, its range extending as far north as the Great Lakes, northern New York and along the Atlantic seaboard into New England (zone 4). Don’t allow the ivy plant to be too heavy. The Boston ivy will do well under all conditions, provided that the winter temperatures do not fall below 10 degrees Fahrenheit. Winter Hardiness: 15 F Parthenocissus tricuspidata (Boston Ivy) - This large plant, most popularly known for covering the brick buildings on Ivy League college campuses, is a deciduous vine that quickly … First year vines may benefit from a layer of mulch, but older plants are very hardy and don't need added protection.