Bomarea caldasii and B. multiflora


Also known as:

Bomaria, climbing alstroemeria

Family: Liliaceae

Origin: South America

Close up of the spotted bomarea flowers.
Flowers are trumpet-shaped.
Photo credit: Weedbusters

Regional Pest Management Plan (RPMP) status

  • National Pest Plant Accord Species
  • Whole region — Sustained control

View more about the RPMP statuses

General description

Multi-stemmed, perennial climbing vine. Leaves are thin, elongated, pale green and pointed. Flowers are tubular, red/orange/gold and hang in clusters from summer – winter. Fruit is fleshy, round, bright orange, and borne in May – August.

What you need to know

To help protect our environment:

  • You must not breed, distribute, release or sell bomarea. As bomarea is a National Pest Plant Accord species, these restrictions apply within the Auckland region and across the whole of New Zealand.
  • You must not plant bomarea 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 bomarea 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.


Disturbed forest, forest margins, lake and riparian margins, shrubland.


Seeds dispersed by birds. Vegetative spread from rhizomes and tubers.

Impact on environment

Smothers native vegetation and prevents seedling establishment, altering successional recruitment. Can cause dermatitis or allergic reactions.


Site Management

Follow up treated areas 3 times per year. Encourage natural regeneration of native plants or replant treated areas where possible after 2-3 treatments to establish dense ground cover and minimise reinvasion.

Recommended approaches

Physical control

Method: Dig out.

Plant parts requiring disposal: Seeds, rhizomes and tubers.

Disposal options: Remove to greenwaste or landfill.


Biocontrol is currently not available for this species.

Community agrichemical control recommendations

No qualifications: Cut stump and paste freshly cut base of stems with double strength glyphosate gel or cut stump and spray freshly cut base of stems with 250ml glyphosate green per 1 L of water. Cut back and foliar spray regrowth with 20ml glyphosate green per 1L of water.

Certified Handler/Experienced agrichemical user: Cut back and foliar spray regrowth with 200ml 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.

Tall stalks of bomarea with a cluster of flowers in the centre.
The vines grow into the tree canopy and form large masses.
Photo credit: Weedbusters
Wild bomarea with tall stalks and long leaves.
Leaves are thin, pale green, long and pointed.
Photo credit: Weedbusters
Bomarea flowers and seeds laid on the ground.
Flowers are red on the outside and bright yellow with red spots inside.
Photo credit: Weedbusters
A cluster of orange bomarea flowers.
Photo credit: Weedbusters
Cluster of fully bloomed bomarea flowers.
Flowers are clumped in a dense bunch.
Photo credit: Weedbusters
Close up of one bomarea flower with darker spots on its tips.
Flowers develop into capsules, when ripe they open to reveal orange fleshy seeds.
Photo credit: Weedbusters