More commonly found in the southern parts of Australia, oxalis is an invasive weed of cultivated fields but is also found in no-till situations (e.g., roadsides and native landscapes).

As discussed in this fact sheet, there are approximately 30 oxalis species in Australia, including soursob and creeping oxalis.

Preventing the spread of the underground soursob bulbs and seeds of the creeping oxalis are critical for controlling these persistent weeds.

The key point to remember is that the control measures in an integrated strategy should be undertaken prior to flowering stage for both species.

This resource has been produced by the Hort Innovation-funded Soil Wealth and ICP project – jointly delivered by RM Consulting Group and Applied Horticultural Research.