Ivy

Hedera helix,English Ivy, Glacier Ivy, Needlepoint Ivy

Ivy is a fast-growing, evergreen vine native to Europe and Western Asia. It is famous for its dense, glossy, three- to five-lobed leaves and its ability to climb with the help of small aerial roots that cling to surfaces. While it is often grown outdoors as groundcover, it is a very popular houseplant, especially in hanging baskets or trained into shapes (topiaries). When grown indoors, it rarely matures enough to flower or fruit. Popular cultivated varieties include 'Glacier', 'Needlepoint', and 'Gold Child'.

Care Guide

LIGHT

  • Prefers medium to bright, indirect light. East or West-facing windows work well.
  • Variegated varieties (white/cream edges) require brighter light to maintain their colors.
  • All-green varieties can tolerate lower light, but growth will be sparse and leggy.

WATER

  • Prefers the soil to dry out slightly between waterings.
  • Water thoroughly when the top two inches of soil feel dry to the touch.
  • Overwatering is a major cause of yellowing leaves and root rot.
  • Reduce watering in the winter when growth slows.

SOIL

  • Needs a standard, all-purpose potting mix that is well-draining.
  • A blend of potting soil with perlite or coarse sand will ensure proper drainage.
  • It is not fussy about soil type, provided it is not waterlogged.

GROWTH HABIT

  • Ideal conditions: Consistent warmth (60-75F) and moderate to high humidity. Prefers cooler temperatures over hot ones.
  • Growth rate & size: Growth rate is fast and vigorous under good conditions. It is a trailing vine that can grow many feet long, easily covering a support structure.

PROPAGATING

  • Propagates extremely easily from stem cuttings taken at any time of year.
  • Take a cutting with several leaves, remove the lowest leaves, and root in water or moist potting mix.
  • Cuttings often root within a few weeks.

PRUNING

  • Pruning is essential to control the fast-growing nature and maintain a dense, bushy appearance.
  • Pinch or cut back the growing tips frequently to encourage branching.
  • Remove any old, yellowed, or damaged leaves along the vine.

REPOTTING

  • Repot when the plant is root-bound, typically every 1-2 years due to its fast growth.
  • Repot in spring or early summer.
  • When repotting, prune back the longest vines and the roots to help control size.

FERTILIZING

  • Feed regularly during the spring and summer growing season (monthly).
  • Use a balanced liquid houseplant fertilizer diluted to half strength.
  • Stop fertilizing in the fall and winter.

FLOWERING

  • Flowers are small, greenish-yellow, and inconspicuous, typically followed by small, inedible berries.
  • Rarely flowers indoors because it needs to reach a high level of maturity to produce the adult-stage foliage and flowers.

TOXICITY

  • Toxic to humans and pets. All parts of the plant, especially the leaves and berries, contain saponins that can cause vomiting, diarrhea, and other gastrointestinal issues if ingested.

PRO TIPS

  • Misting or high humidity helps prevent spider mites, which Ivy is highly prone to, especially in dry, warm indoor environments.
  • Ivy prefers cooler indoor temperatures (60-70F) over hot, stuffy rooms.
  • If grown as a topiary, rotate frequently and prune diligently to maintain the shape.

Variability in Care

Small-Leaved Cultivars

Examples: 'Needlepoint', 'Manda's Crested', 'Pixie'

  • Feature very small, finely cut, or curled leaves, making them excellent for small topiaries.
  • Due to their density, they are more susceptible to spider mites and require diligent humidity/misting.
  • The soil in smaller pots may dry out more quickly.

Variegated Cultivars

Examples: 'Glacier', 'Gold Child', 'Silver King'

  • Have a high percentage of white, cream, or yellow on their leaves.
  • Require the brightest indirect light to maintain their coloration; they will revert to solid green in low light.
  • Are slower-growing than the all-green varieties.

Large-Leaved Cultivars

Examples: 'Irish Lace', 'Baltica'

  • Feature larger, less-cut leaves and a slightly more vigorous growth habit.
  • Tolerate slightly lower light than the variegated types due to higher chlorophyll content.
  • The leaves are easier to clean/dust than the finely cut varieties.

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