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

  1. Pull out small plants (all year round): leave to mulch.
  2. 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).
  3. Overall spray (spring-summer): triclopyr 600g/L (30ml/10L).

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