Japanese Honeysuckle

Family:
Caprifoliaceae
Origin:
Japan

General description

Evergreen climber, can grow <15m/year. Oval leaves, lighter green underneath; in winter or low light conditions may be toothed or cut. Fragrant, paired, white or yellow tubular flowers (Sept-May). Black berries.

Shrublands, forest margins, roadsides, plantations, coastal areas, wetland margins, offshore, islands. Well adapted to low light conditions. Frost, wind, drought tolerant. More vigorous in deeper valley soils.

Seed spread by birds. Garden dumpings.

Invades disturbed forests & margins. Out-competes other plants by smothering.

Site management

Very shy seeder, sites usually remain clear after treatment, however is hard to kill. Check for new sprouts 6-monthly until clear. Replant bared areas if seedlings are a problem.

Recommended approaches

1. Cut & dig roots out.
2. Vial method for ground infestations. Pull up all stems possible & dispose. Treat remainder by placing cut vine ends in vials 5-10m apart containing 1g metsulfuron/20ml. Move vials monthly until plant eradicated.
3. Cut & paint (5g metsulfuron/1L or 200ml Tordon BK /1L or Vigilant Gel).
4. Large vines can be cut at head height & sprayed below this summer- autumn (5g metsulfuron + 10ml penetrant/10L or
60ml Tordon BK/10L).
5. Spray (125ml clopyralid/10L).

Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.

Similar species

tutsan
Hypericum androsaemum

Tutsan is similar to young Japanese honeysuckle. It's leaves smell of curry when crushed. It lacks a climbing habit.

RPMS status

Surveillance - Whole Region
Community Initiatives - Whole Region
National Pest Plant Accord species - nationwide
Japanese honeysuckle - Main species image