Klimop

Hedera helix

Engels: English Ivy

climberAraliaceae🇳🇱 InheemsWintergroen

Klimop (Hedera helix) is a native to the Netherlands, evergreen climber from the Araliaceae family that grows up to 20 meters tall. This plant thrives in full sun to partial shade to shade and requires moderate maintenance. Blooms in autumn with yellow flowers and attracts bees and butterflies and birds.

Hoogte

200–2000 cm

Breedte

200–500 cm

Zonligging

full sun, partial shade, full shade

Waterbehoefte

moderate

Grondsoort

loam, clay soil, chalky soil

Onderhoud

moderate maintenance

Bloeitijd

autumn

Bloemkleuren

yellow

Ecologische waarde

Trekt bijen aan

🦋 Trekt vlinders aan

Trekt vogels aan

Verzorgingskalender

Taak	Jan	Feb	Mrt	Apr	Mei	Jun	Jul	Aug	Sep	Okt	Nov	Dec
🌱Planten
✂️Snoeien
💧Bemesten

Care tips

Planting

English ivy (Hedera helix) is one of the most adaptable climbers you can grow, tolerating full sun, partial shade, or even deep shade, though it performs best with some shelter from harsh midday sun in summer. It thrives in loam, clay, or chalky soils and isn't fussy about pH. Plant between March and May or in September and October when the soil is workable and temperatures are mild. Before planting, dig over the soil and work in some well-rotted compost or manure to improve structure and moisture retention, especially if your ground is heavy clay or very free-draining chalk. Dig a hole roughly twice the width of the root ball and the same depth. Position the plant so the top of the root ball sits level with the surrounding soil. If planting against a wall or fence, set the ivy about 30–45 cm away from the base to avoid the dry rain shadow and give roots room to establish. Space plants 150 cm apart if you're covering a large area or want a dense screen relatively quickly. Backfill with soil, firm gently with your heel, and water thoroughly to settle roots and eliminate air pockets. Apply a 5 cm layer of organic mulch around the base, keeping it clear of the stems to prevent rot. If you're training ivy up a wall, trellis, or tree, tie in a few of the longest shoots loosely with soft garden twine to guide initial growth. The aerial roots will take hold naturally once the plant is established. Water regularly for the first growing season—every few days in dry spells—until the roots have spread and the plant shows vigorous new growth.

Pruning

English ivy doesn't require regular pruning to stay healthy, but it does need controlling to prevent it becoming invasive or smothering other plants, gutters, and roof tiles. The main pruning window is March and April, just before the spring growth flush, and again in June if regrowth has been vigorous. Avoid pruning in frosty weather or late autumn when wounds are slow to callus. Use sharp secateurs for stems up to pencil thickness and loppers or a pruning saw for older, woody growth. Wear gloves—the sap can irritate skin, and some people are sensitive to contact with the foliage. Start by removing any dead, damaged, or diseased stems, cutting back to healthy tissue or the main framework. Then step back and assess the overall shape. If ivy is climbing a wall, trim it back from windows, doors, roof edges, and downpipes. Cut shoots flush with the wall or just behind where you want the edge to be; new growth will quickly fill in. On trees, remove ivy if it's reaching the canopy and competing for light, but ivy on the trunk alone rarely harms mature, healthy trees. For ground cover, shear or mow over the patch in early spring to rejuvenate tired growth and keep it dense. Hard renovation pruning is possible if ivy has got out of hand: cut the entire plant back to within 30–60 cm of the ground in March. It will resprout vigorously from old wood. After any pruning, clear away clippings promptly—ivy can root from cut stems if left on bare soil.

Maintenance

Once established, English ivy is drought-tolerant and needs watering only during prolonged dry spells in summer—give it a thorough soak every two weeks rather than frequent light sprinklings. In the first year, water weekly if rainfall is scarce. Ivy growing in containers or against hot south-facing walls will need more regular attention. In autumn and winter, natural rainfall is almost always sufficient. Feed once a year in April with a balanced general-purpose fertiliser (such as blood, fish and bone or a granular NPK feed) scattered around the base at the rate recommended on the packet. Avoid high-nitrogen feeds later in the season, which promote soft growth vulnerable to frost. Ivy is evergreen and fully hardy across zones 4a–9b, so no special winter protection is needed. Refresh the mulch layer each spring to suppress weeds and conserve moisture. English ivy is generally robust but can occasionally suffer from scale insects, which appear as small brown lumps on stems and leaves, and aphids on new growth in spring. Treat heavy infestations with an insecticidal soap or horticultural oil. Leaf spot and powdery mildew can occur in crowded, poorly ventilated growth—improve air circulation by thinning congested stems. Root rot may develop in waterlogged soil, so ensure good drainage at planting. Keep an eye on ivy's spread. It can self-layer where stems touch the ground and may seed into borders from the autumn flowers (which appear on mature, non-climbing adult growth). Remove unwanted seedlings and rooted layers promptly. Check annually that it isn't lifting roof tiles, blocking gutters, or damaging mortar on older walls.