Weeds Pests Diseases
everything for lawn care all in one place
providing dependable & original lawn tips since 2008
The Lawn Guide
Oxalis
Oxalis

How To Kill Oxalis | Soursob | Wood Sorrel

There are many varieties of Oxalis, known by common names such as: Soursob, Purple Oxalis, Wood Sorrel, Creeping Oxalis, and more names.


Ornamental Oxalis

With over 800 known varieties of Oxalis, and over 30 of those in Australia, not all are weeds, and some may even be beautiful ornamental plants. For the purposes of this articles we'll concentrate on those varieties of Oxalis which are of the greatest concern as weeds.


Oxalis or Clover

Oxalis is often mistaken for Clover, while they both can have a similar appearance with trifoliate sectioned leaves, Oxalis can be easily distinguishable by having Heart Shaped Leaves compared to the Oval Shaped and Serrated Leaves of Clover.

Oxalis
Oxalis consuming a lawn

Invasiveness of Oxalis

All Oxalis weeds in Australia are considered highly aggressive, and should be eliminated completely from our lawns and gardens in order to be controlled. An infestation can occur in almost any environment.

Oxalis can have creeping stems that knit into the layers of the lawn and its roots, and sets down numerous corms, making Oxalis very difficult to hand-pull as a means of eradication.

The picture above illustrates Oxalis completely overtaking a Couch lawn. The aggressiveness of the Oxalis is highly increased due to poor lawn health. In this situation, the Couch lawn is exposed to too much shade to ever obtain optimum health. As a result, the Oxalis is free to aggressively spread and easily fight and win against a highly weakened lawn.


Oxalis Eradication

Oxalis is very difficult to remove, and may need 2-3 treatments over a period of weeks with a selective Oxalis herbicide when a lawn is infested.

When a garden bed or other non-lawn area is affected with Oxalis, the use of a non selective herbicide like Glyphosate is the best option to eliminate the Oxalis weed and its root system. Just be very careful with Glyphosate - as this non-selective herbicide will kill any lawn or plant it comes into contact with. Use Glyphosate carefully.

If Oxalis problems still persist, and the weed is proving difficult to eradicate, try switching herbicide brands and types, or consult a Professional and Licensed Weed Control Contractor. Oxalis is one tough weed, and hiring a professional weed spraying contractor may be the overall easiest, quickest and cheapest method to permanently remove Oxalis from our lawns.

Just realise though, that even with professional weed spraying or if the homeowner is spraying Oxalis themselves - that more than one treatment is likely necessary, and that we should expect to treat Oxalis again over the next couple of years until it is fully eradicated from our lawns.

Be sure not to forget to remove all traces of Oxalis from garden beds as well.





All content original and copyright
The Lawn Guide
Lawn Care Tips
you may also like one of
these lawn care articles...
General Lawn Care
IMAGE
Shady Area By Kate Wall 'New Content' Even the best laid lawn can...
IMAGE
Using lawn fertilisers properly How Does Fertiliser Burn Lawns...
IMAGE
10 minute lawn care is easy The Easiest Way To Have A Great Lawn In...
Lawn Repair
IMAGE
Repairing a Hard Lawn Hard Lawns and Compacted Soils Lawns, and more...
IMAGE
Buffalo Lawn Thatch Thatch In Buffalo Lawns Thatching in Buffalo...
IMAGE
Buffalo Seed Heads The Problems of Buffalo Lawn Going To Seed One of...
Lawn Watering
IMAGE
When is the best time to water lawns Correct Lawn Watering Times...
IMAGE
When to water lawns Water Requirements For Lawns Generally speaking,...
IMAGE
Watering too often Excessive Watering Of Lawns When we talk about...
Lawn Mowing
IMAGE
'New Content' By Kate Wall When it comes time to buy a mower we can...
IMAGE
Push Lawn Mower Introduction to Push Mowers The push lawn mower is a...
IMAGE
28" MEY Commercial cylinder mower Cylinder Lawn Mowers Cylinder lawn...
Weeds | Pests | Diseases
IMAGE
Storing lawn pesticides and weed killers Storing Lawn and Garden...
IMAGE
'New Content' By Kate Wall Sod-web worm, cutworm, lawn grub, army...
IMAGE
Common Chickweed in Flower How To Kill Chickweed Chickweed is a...
Lawn Varieties
IMAGE
Couch Grass Characteristics of Couch Grass Couch Grass is by far one...
IMAGE
Which Lawn Variety Is Right For Our Home When taken into full...
IMAGE
Cool season lawns are mowed higher Introduction To Cool Season Lawns...
THE LAWN GUIDE ©


prevention and treatment of lawn weeds, lawn pests including army worm & sod webworm, & lawn diseases such as brown patch & spring dead spot
independent lawn care tips for australian lawns

Lawn Care Facts
Lawn Fact:
A waxy coating on the grains of soil is responsible for the water repelling effect that is often seen in soils, resulting in poor lawn or plant health. In a similar manner to detergents, Wetting Agents will break down this waxy coating, allowing for easier water absorption and retention. Wetting Agents should be included as a normal part of the maintenance routine of every lawn and applied at least twice a year.
Professional lawn care videos sharing quality lawn care tips in an easy video format - click to watch
correct lawn mowing techniques video
meanings to the most common terms
used in lawn care practices in australia
Lawn Care Expert
Respected Australian turf and plant breeder Todd Layt shares expert lawn care advice with lawn lovers
LINK TO THE LAWN GUIDE
Grab this image and link to Australia's original & favourite source of quality lawn care tips
THE BUFFALO LAWN CARE SITE
Lawn care tips for Australia's favourite shade grass
Organic lawn care advice to create environmental benefit from our lawns
IMAGE
Low toxic natural methods to control ants Control Ants In The Lawn, Garden and Paving Ants can...
IMAGE
Fix Lawn Problems As Quickly As Possible Reducing the use of chemical treatments and reducing...
IMAGE
Lawn Watering Problems Many of us water our lawns in all the wrong ways possible, and as a...
A low maintenance and environmentally friendly lawn for all warmer regions
IMAGE
Zoysia and Winter Are Not Good Friends The one single drawback which stops Zoysia being the...
IMAGE
One Council park using common Kikuyu Time To Switch Our Parks To Zoysia We're going to take a...
IMAGE
Who Shouldn't Choose A Zoysia Lawn We understand that Zoysia will not be the best lawn for...
Lawn care discussions and observations in a friendly blog format from The Lawn Guide
IMAGE
As many people who have visited The Lawn Guide over the years, and since our first launch in...
IMAGE
Lawns Are The Greatest Carbon Cleaners We should all have confidence in our lawns, knowing...
IMAGE
This is a media summary for the independent research which we reference on The Lawn Guide,...

Lawn Care Topics
the lawn guide ~ australia's leading source of quality lawn care information