Can You Hang Ivy Plants Outside?

Temperatures

• The most important thing to consider when growing ivy outdoors is your climate. The hardiness of ivy ranges widely, depending on the species and cultivar. Some ivies will withstand temperatures as cold as minus 20 degrees Fahrenheit. These ivies are marketed as cold-hardy to U.S. Department of Agriculture (USDA) growing zone 4. Others won't tolerate temperatures much below 20 degrees above zero. These are classified as being hardy to USDA zone 8. Ivy plants may also suffer from heat stress if they are exposed to prolonged hot temperatures and dry conditions.

Location

• Hang your ivy plant outside where it will receive some shade. Most ivies will not tolerate hot, direct sunlight. The hotter the sun, the more shade your ivy needs. In fact, most ivies grow best outdoors in at least partial or even full shade, according to the University of Florida Extension website. For this reason, ivy baskets make a great addition to a covered porch or patio.

Culture

• Ivy grows best in rich, fertile soil. Any loamy potting soil will work well for growing ivy. Keep the soil slightly moist, as ivy prefers its roots to be cool. Never over water, however, and make sure the basket contains drainage holes. Overly wet soil that does not drain well can lead to root rot. Ivy trails over the edges of baskets, but it also grows rapidly. Frequent pruning may be necessary to keep the vines under control.

Species and Cultivars

• English ivy (Hedera helix) is the most commonly cultivated ivy in the United States. There are over 400 cultivars of this ivy alone. Some have variegated leaves. English ivy is a good choice if you live in a wet, temperate climate with mild summers and winters. Algerian ivy ( H. canariensis) is the second most common ivy. It is notable for its large, three-lobed leaves with red petioles (leaf stems). It has a rather sparse appearance, so it works best in a hanging basket with other flowers to fill it out. Persian ivy (Hedera colchica) is the best choice for home gardeners who live in the coldest climates. It has the largest leaves of all the ivies; they can grow to 10 inches long.