Ivy (Hedera helix)
Common ivy is a popular ornamental, valued for its ability to thrive in shady places, provide excellent groundcover and cover unsightly walls, sheds and tree stumps. Many cultivars are available, including variegated forms that can be used to brighten shady depths of winter gardens.
Long collected for winter decorations, common ivy is associated with Christmas and frequently features in festive designs. It is also an important source of food and shelter for wildlife during winter.
Ivy is not a parasite, does not normally damage sound buildings or walls, and is rarely a threat to healthy trees. Regular trimming can prevent ivy becoming too heavy, a problem that can be exacerbated by the additional weight of rain and snow.(LINK)