Houseplant · Araliaceae
English Ivy
Hedera helix
Tough, shade-loving, and fast to fill a pot, English ivy trails or climbs wherever you point it.
Bright indirect
50–70°F · 10–21°C
USDA 4–13
20–79 ft · 6–24 m
Overview
English ivy is an evergreen vine whose lobed, leathery leaves hold a deep, waxy green through every season. Each blade is firm to the touch with pale veins fanning out from the stalk, and the leaves crowd close along thin, flexible stems that root at the joints. It belongs to the aralia family, comes from Europe, and indoors it sends out long, leafy stems that hang in dense green curtains over the lip of a pot.
Up close the plant reads as layer upon layer of overlapping foliage. New tips uncurl a softer, lighter green before hardening to the mature waxy sheen, and the stems thicken and stiffen as they age. It takes bright indirect light but holds its color in low light and partial shade, and it grows fast, packing the pot with long, leafy stems that knit together into a solid mass.
That same dense growth becomes a problem outside the pot. English ivy is toxic to pets and an invasive weed across much of the US, where its mats of foliage bury native plants and its clinging stems climb into siding and gutters. Kept indoors, off the walls and out of reach, the vine shows its best side, a glossy, evergreen tumble of leaves.
Care
The short version: the glossy leaves keep their color in bright indirect light or shade, the soil wants water only after the top half inch dries, the plant stays best cool with decent humidity, and the supple stems take pruning whenever needed.
Light
English ivy holds its deepest, most even green in bright, indirect light, which sharpens the contrast in variegated leaves and keeps the cream and silver markings crisp. It also keeps its color in medium light, low light, and partial shade, the leaves staying glossy where fussier plants pale. Deep shade slows the new growth and washes the variegation toward plain green, though the foliage stays alive.
Water
Water the soil thoroughly, then let the top half inch (about 3 cm) dry before the next drink, so the firm leaves never wilt or yellow. Standing water in a saucer keeps the roots sodden and turns them soft and brown, so it is always emptied. A slightly dry rootball keeps the foliage glossy rather than limp.
Soil
A quality houseplant mix with excellent drainage keeps the fine roots aerated, since waterlogged soil is the one thing that rots them. Set in open ground the same roots cope with far rougher footing, gripping clay, loam, sand, and even rocky soils.
Temperature
The foliage stays firm and richly colored in cool air, 50°F to 70°F (10°C to 21°C), the range most homes hold. In hot, stuffy rooms the leaves soften and dull, and the dry warmth is exactly what spider mites need to mottle them.
Humidity
Average household humidity keeps the leaves supple. A little extra moisture in the air firms them further, and higher humidity helps keep spider mites off the leaf surfaces, so a pebble tray or a fine misting earns its place in dry winter rooms.
Feeding
A foliage houseplant fertilizer fed monthly during active growth deepens the leaf color and pushes out fresh, bright tips. Feeding eases off when growth slows in summer heat or cold weather, since a resting plant leaves the extra unused in the soil.
Pruning
The supple stems take hard, frequent cutting and flush back fast with new leafy growth. Pinching and trimming thicken the plant and stop the stems from stretching bare and leggy, and a stem pinned along a trellis or topiary frame lays its leaves into the shape you set.
Repotting
Ivy is content with its roots packed snug, so the pot is changed only once the plant turns top-heavy, fills with a dense mat of roots, or dries out too fast after watering. A move up of no more than an inch in pot diameter keeps the fresh soil from staying sodden around the fine roots and rotting them.
Size & spacing
Indoors the trailing stems stay short and leafy with a quick trim, but turned loose outdoors the woody stems climb from 20 to 80 feet (6 to 24 m) and the foliage spreads 3 to 49 feet (90 cm to 15 m). That reach, stem clinging over stem, is what carries it up into trees and structures and the reason it stays contained.
Troubleshooting
English ivy is hardy, so when the leaves lose their even green sheen the cause is usually one of two things. Dry indoor air invites spider mites that stipple and bleach the blades and crisp their edges, while harsh winter sun and wind scorch and curl the foliage on plants left outside. Match the look of the leaf below before the discoloration spreads.
Speckled, bleached leaves with faint webbing
When the glossy green surface turns stippled and pale, dotted as if dusted with grit, and a faint web threads the leaf joints, spider mites are at work, the most common pest on indoor ivy. They crowd into warm, dry rooms, so tap a leaf over white paper and watch the tiny specks creep across it. A hard spray of water knocks them loose, insecticidal soap on the pale undersides finishes them, and cooler, damper air keeps the glossy color from washing out again.
Fix:
- Spray plants forcefully with water, including leaf undersides, to dislodge mites
- Treat with insecticidal soap, repeating as needed
- Dunk foliage upside-down in an insecticidal soap solution to wash pests off
Browning, dried-out, or scorched leaves
Outdoors this shows as winter scorch, where the once-deep green blades crisp to brown and curl at the points as cold sun and wind pull moisture out faster than the roots send it up. Indoors the same dryness chars the thin leaf margins to a brittle tan while the centers stay green. Outdoor plants kept clear of harsh winter sun and wind hold their color, and an indoor pot set over a wet pebble tray keeps the edges supple rather than crisp.
Fix:
- Site plants out of harsh winter sun and drying wind
- Raise humidity with a wet pebble tray and avoid letting soil dry out completely
Toxicity
For all the appeal of its glossy, deep-green leaves, English ivy is a plant to keep out of reach rather than handle freely. Every part, leaf, stem, and dark berry, holds triterpenoid saponins, with the berries the most dangerous if swallowed, and the clear sap from a cut stem irritates skin on contact. It is toxic to cats, dogs, horses, and other animals, and no part is safe to eat, so site it away from pets and children and wear gloves when you prune.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds · People
Cats Moderate
A cat that bites into the firm, waxy leaves usually drools, vomits, and develops diarrhea, often with belly pain. Those glossy blades carry more of the toxin than the dark berries do, so the foliage is the part to guard.
Dogs Moderate
A dog that chews the leathery foliage drools heavily, vomits, and runs loose soon after. Puppies that seize a long, rope-like trailing stem and shred it swallow the most and react the hardest.
Horses Moderate
The saponins inside the stems and leaves irritate a horse's gut, bringing drooling, colic-like pain, and loose droppings. Trimmed clippings and the woody climbing stems both belong well away from paddocks.
Rabbits Toxic
Neither the lobed green leaves nor the rounded berries are safe for rabbits, and either leaves them drooling, off their food, and with an upset stomach. No part should be offered as forage.
Livestock Toxic
Cattle, goats, and sheep that strip the leaves and stems suffer digestive upset and worse from the same saponins. Pull the trailing growth from pastures and fence lines before grazing animals reach it.
Birds Caution
Wild birds swallow the ripe, dark berries whole and spread ivy unharmed, but the raw, waxy leaves are another matter, so treat pet birds with care and keep cuttings out of the cage.
People Caution
No part of ivy is food, and the small dark berries are the most dangerous if swallowed, bringing a burning mouth, vomiting, and cramps. The clear sap from a cut stem irritates skin too, so wear gloves when you prune.
Wear gloves when pruning or removing ivy, as the cell sap can cause skin redness, itching and blisters.
Helpline numbers
United States
ASPCA Animal Poison Control: (888) 426-4435 (fee applies)
Poison Control: (800) 222-1222
Canada
Poison Centres: 1-844-764-7669
Varieties
Most ivy sold for the home is a named cultivar chosen for the shape, color, or markings of its leaves, and a few stand out clearly side by side.
'Gold Child'
A band of cream-yellow to gold runs around the rim of each leaf, glowing against the green center in a corner where a plain leaf would read flat and dark.
'Needlepoint'
Its leaves are narrow and sharply lobed into a slim bird's-foot shape, giving the whole plant a fine, lacy texture prized for trained topiary.
'Glacier'
Streaks and edges of silvery-white variegation break across the gray-green blades for a cool, frosted look, as if each leaf were dusted with rime.
'Baltica'
Its deep green, tough-textured leaves belong to a cold-hardy form often spread outdoors to bind soil and hold back erosion on slopes.
How to propagate
English ivy roots with almost no effort, pushing out fine pale roots from a stem stood in water or from any node that meets damp soil.
Stem cuttingsEasy
Any time during active growth · Roots typically form in a few weeks
Ivy roots almost effortlessly from a snipped piece of stem. Cut a green tip or length of stem any time it is actively growing and stand it in a glass of water, where pale threadlike roots push out from the nodes within a few weeks. Once a small white cluster has filled the base, the cutting is ready to slip into fresh mix.
LayeringEasy
During the growing season · Several weeks to a few months
Wherever a trailing stem presses its swollen nodes against damp soil, fine roots grow down on their own. Pin a stem flat during the growing season and leave it, and over the next several weeks to a few months those nodes anchor and root. The rooted length is then severed from the parent and lifted to wherever it is wanted.
Myths
Only the berries are dangerous, so the leaves are safe to handle and have around pets.
The waxy leaves and the rounded berries hold the very same triterpenoid saponins, and the ASPCA marks the foliage as the more toxic part for animals that chew it. The dark berries are the bigger risk if a person swallows them, but no part of the plant, leaf, stem, or fruit, is harmless.
English ivy is just a harmless ornamental groundcover.
Behind the neat green carpet it is a documented invasive species across much of the US and a listed noxious weed in Oregon. The trailing stems smother native plants and the clinging aerial roots haul the vine up into siding and gutters, so check local rules before you plant it.