Severe skin irritation can result from contact with the plant cell sap. This is Delaware. English ivy, or Hedera helix, is an evergreen plant that is found in many parts of Canada and the United States.Hedera hibernica is a similar plant that has also been introduced to North America and is often known as English ivy. Provide part or full shade, or even full sun in cool climates. Q. In its native habitat the common name of this plant is Atlantic or Irish ivy. They are a fairly hardy plant temperature wise, so don’t fret too much over this. English ivy is hardy in zones 5 or 6 to 9. ... that has English Ivy covering it, and I keep it trimmed. Pinch young plants to encourage bushy growth. All types of English ivy are climbing ivy plants and they can reach up to 100 ft. (30 m) in the right conditions. Also known as common ivy or Hedera helix, English ivy can thrive in cold and low light situations. English ivy (Hedera helix) and its many cultivars belong to the ginseng family (Araliaceae). In fact, it could be that the regular leaf english ivy can take the cold a bit better than the smaller leaf varieties when potted. Nikki – short of building a heated greenhouse around this plant, there is no way it will survive outside in a Chicago winter. Although English ivy is actually considered an invasive species in some regions, it is a popular choice for ground cover, or to grow up a wall, trellis, or other structure. Or should I cut it down and replant? Most of them are tolerant of extreme conditions and can survive shade, poor soil, and atmospheric pollution. Temperature & Humidity Toxicity of English Ivy . I think if you have a mild winter (not below 0Â° F and minimal single digits), you should do okay. Many people like the plant because it stays green all … English ivy can be grown in the ground or in containers, indoors or outdoors, and can survive in shade, partial shade, or full sun. You can also mist the foliage with a fine sprayer. I have an attached unheated garage with 1 small window …how can I make sure it survive in a Chicago winter. Ingesting the leaves can cause excessive drooling, vomiting, and diarrhea as … When the topsoil (1/2-1 inch depth) is dry to touch, it’s time to water the ivy plant again. There are more than 400 varieties of English ivy in cultivation, but only a few of these are hardy as outdoor plants in the Chicago area. I'll give it a few more weeks. All parts of the plant are toxic. CL Fornari Posted at 09:52h, 11 October Reply. Always allow the soil to dry out slightly between watering spells. English Ivy plants enjoy warm, humid days but like it cooler in the evening. Can you tell me if my English ivy, which has turned brown over this last winter, will turn green again and be OK? Like Hedera helix, it may become invasive. Bring plants indoors during the winter in cold regions. Thanks for the responses. The English ivy (Hedera helix) is a flowering type of ivy that is a clinging evergreen vine and a popular plant in many countries.English ivy has broad large dark-green leaves that can grow up to 4″ (10 cm) long. But that winter, with the cold snap and the wind, this definitely would have needed something more to help it cope. It looks really dead right now!!! Keep the soil moist. The ivy is perfect there, and has been there for about 15 years. Shop 6-pack in tray english ivy (l3258) in the vines section of Lowes.com Many species can also winter outside and will grow back from their stems. Mandevilla: You can find this tropical vine sold almost everywhere during the warm months. While English ivy can tolerate moist and dry soil both, it’s better to keep it on a balanced side. If our ivy didn't survive this unusually cold winter, I wonder what else might not have survived. English ivy vines are poisonous plants for humans, dogs, cats, and livestock. Turn the thermostat down a few degrees before you go to bed and your ivy will thank you for it. The English Ivy Plant.