Orange Cestrum
Solanaceae - Cestrum auranticum
BioSecurity

What does it look like?

Smelly shrub (<2m) with erect, hairless stems that become woody. Leaves (4-15 x 2-7 cm) are hairless and smell strongly when bruised. Orange, scentless, tubular flowers (20-25 mm) with petal margins bent backwards appear Nov-July and are followed by clusters of white berries (15 x 20 mm).

Why is it a problem?

Moderate to high shade tolerance. Grows in fertile soils, damp, hot or cold. Forms dense, shady masses, and produces many long-lived and widely-dispersed seeds. Poisonous, not grazed.

Forms dense stands in forest understory, preventing native species from establishing. Poisonous berries and rotting vegetation may affect native fauna.

Control Methods

Physical control

  • Pull out small plants (all year round): leave to mulch.

Herbicide control

  • Cut trunk and paint stump (all year round): cut trunk near to the ground, and swab freshly cut stump with Tordon BK (100ml/L); or triclopyr 600g/L (100ml/L).
  • Overall spray (spring-summer): triclopyr 600g/L (30ml/10L).

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