Himalayan honeysuckle
Caprifoliaceae - Leycesteria formosa
BioSecurity

What does it look like?

Himalayan honeysuckle is a shrub that grows up to 2m tall (it is not a vine, like Japanese honeysuckle). It has straight, hollow stems and heart-shaped leaves. From December to May, drooping spikes of white and reddish-purple flowers grow from the tips of the branches; these are followed by juicy, dark brownish-purple or red berries.

Himalayan honeysuckle is a plant of coastal and lowland habitats, favouring damp conditions such as beside streams and in riverbeds. It is also found within native and plantation forests and shrublands, where it colonises clearings and canopy gaps.

Why is it a problem?

Himalayan honeysuckle grows rapidly to produce dense thickets that replace and exclude other species.  It prefers sunny sites but can tolerate shade, frost, physical damage, damp, and most soils. However, it is not long-lived. After flowering, Himalayan honeysuckle produces numerous berries that contain high numbers of seeds.

Control Methods

Physical control

  • Dig out small clumps in early spring before seed is set. Leave plants on site to rot down.

Herbicide control

  • Spray with 4g metsulfuron or 100mL glyphosate or 100mL Touchdown per 10L water.
  • Gun and hose 20g metsulfuron or 1L glyphosate or 1: touchdown per 100L water.
  • Cut and stump paint 1g metsulfuron or 200mL glyphosate per 1L water.

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