Clockweed (Oenothera curtiflora)



Clockweed is a garden escape that has become an invasive environmental weed in a few locations particularly along roadsides, creeks and waterways. 


Clockweed is an annual herb growing to one metre high with white flowers that become reddish or yellow with age.

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Herbicide options

Contact your local council weeds officer for control advice for Clockweed (Oenothera curtiflora).

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Legal requirements

The content provided here is for information purposes only and is taken from the Noxious Weeds Act 1993.

Area Class Legal requirements
All of NSW 5 Restricted Plant
The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with

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For technical advice and assistance with identification please contact your local council weeds officer.
For further information call the NSW Invasive Plants and Animals Enquiry Line on 1800 680 244 or send an email to

Reviewed 2014