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Lonicera caprifolium

Italian honeysuckle

Common names: Perfoliate honeysuckle, Goat-leaf honeysuckle

At a glance

Light
Partial shade
Hardiness
Hardy down to −25 °C
Spacing
100 cm, rows 150 cm
Water need
Medium
Origin
Native to Germany
Italian honeysuckle

Description

The Italian honeysuckle is a vigorous climber that envelops pergolas, releasing a captivating fragrance on warm summer evenings in June and July, attracting moths. Its cream‑white to pink tubular flowers are a magnet for butterflies and bees. In late summer bright red berries follow, intended for birds and not edible for humans.

Care instructions

Plant the honeysuckle with its base in shade and its crown in sun, preferably on a trellis or an old tree. Keep the root zone cool and moist, for example with a mulch layer. Prune spent shoots immediately after flowering (August, week 32) to maintain a bushy habit and prevent the plant from becoming leggy from below.

The care notes were machine-translated from German.

Soil & site

Soil pH

4.0pH 6.5–7.88.0

Soil type

loamy, humus-rich, well-drained, moist, lime-loving, nutrient-rich

LightPartial shade
Hours of sunat least 4 h a day
HardinessHardy
Water needMedium

Your honeysuckle likes a humus-rich, loose and free-draining soil, fresh to moderately moist. It does not tolerate waterlogging or heavy compaction. Loamy, chalky soils with a neutral to slightly alkaline reaction are ideal; plant it so that the root zone stays cool and shaded while the shoots grow into the light.

Feeding

Medium feeder

Months

Mar–Apr

In spring (March to April), work mature compost and a little horn shavings in shallowly into the root zone. A mulch layer of bark compost or grass clippings keeps the soil moist and supplies the plant in the long term. Do not feed after July, so that the shoots ripen well before frost.

Overwintering

The Italian honeysuckle is fully hardy and survives the lowland winter of Germany, Austria and Switzerland outdoors without protection. Only freshly planted young plants can you cover at the roots with leaves or bark mulch in the first winter; it is best to prune only in spring after growth starts or directly after flowering.

Propagation

Methods

  • Cuttings
  • Layering
  • From seed

Cuttings (recommended): From June to August, take semi-ripe shoot tips without flowers, about 10 to 15 cm long, with at least three leaf nodes. Remove the lower leaves and insert the cutting into a mix of sand and seed compost. Place it in partial shade and warm (about 20 to 25 °C) and keep the soil evenly moist. After a few weeks roots form, recognisable by new shoot tips. Alternatively, in autumn to winter you can take hardwood cuttings (15 to 20 cm) and insert them directly outdoors.

Layering: From March to May, bend a young shoot growing close to the ground down to the soil, nick it lightly on the underside and cover the notch with a little soil. Fix the shoot with a wire staple or a stone; the shoot tip should stick out at the top. In autumn, new leaves show success; separate the layer from the mother plant the following spring and move it to its final spot.

Sowing (not much recommended): Collect the red berries from late summer to autumn. Caution, they are poisonous. Wash off the pulp and cold-stratify the seeds for a few weeks. Sow from spring. Germination is uneven and protracted, and the young plants grow very slowly in the first year. For garden practice, cuttings or layering are much more reliable.

Companion planting

Companion planting is partly traditional gardening lore. Where the reason is known, it is given.

For your garden

Grow Italian honeysuckle yourself

Gartenkern tells you when frost is coming, when to sow and when to harvest, for your location.

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