Senecio mikanioides syn. Delairea odorata

German ivy

Also known as:

Water ivy, parlor ivy

Family: Asteraceae

Origin: South Africa

German ivy flowers growing above the leaves.
German ivy smothers understory, suppressing native regeneration.
Photo credit: Weedbusters

Regional Pest Management Plan (RPMP) status

  • Whole region — Sustained control
  • Hauraki Gulf Controlled Area Notice pest

View more about the RPMP statuses

General description

Scrambling, climbing perennial vine < 5 m. Leaves are soft, hairless and bright green, with small ear-like projections at base of leaf stalks. Flowers are yellow and button-like.

What you need to know

To help protect our environment:

  • You must not breed, distribute, release or sell German ivy within the Auckland region.
  • You must not plant German ivy within the Auckland region, unless you are transferring an existing plant on your land to another location within the boundaries of the same property.
  • You must destroy any German ivy on land that you occupy if it has been planted in breach of the above rules and you are directed to do so by an authorised person.


Coastal areas, cliffs, lowland forest and riparian margins, roadsides, wasteland, open areas.


Seeds dispersed by wind. Vegetative spread from stolons.

Impact on environment

Smothers understorey, suppresses seedling regeneration and facilitates invasive vines. Toxic to aquatic animals and terrestrial invertebrates.


Site Management

Cut and pull vines away from desirable trees and native plants before foliar spraying. Follow up treated areas 3 times per year. Encourage natural regeneration of native plants or replant treated areas where possible after 4-6 treatments to establish dense ground cover and minimise reinvasion.

Recommended approaches

Physical control

Method: Dig out.

Plant parts requiring disposal: All parts.

Disposal options: Remove to greenwaste or landfill if practical.


Biocontrol is currently not available for this species.

Community agrichemical control recommendations

No qualifications: Cut stump and paste freshly cut base of stems with glyphosate gel or cut stump and spray freshly cut base with 100ml glyphosate green per 1L of water.

Certified Handler/Experienced agrichemical user: Foliar spray with 100ml glyphosate green per 10L of water and 20ml penetrant.

Caution: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.

Clusters of german ivy flowers.
Flowers are yellow and formed in dense clusters.
Photo credit: Weedbusters
Dense mat of German ivy.
Scrambling or climbing perennial vine.