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
Classic signs of early dehydration Why Lawns Turn Yellow or Brown Why...
IMAGE
Benefits of Instant Turf 'New Content' Homeowners often think that...
IMAGE
Regular lawn mowing Regular Lawn Mowing When lawns are mown at the...
Lawn Repair
IMAGE
Lawn Top Dressing Reasons For Top Dressing Lawns Top dressing lawns...
IMAGE
Dog urine burning lawn Dogs Urine Burning Lawns The problem of lawn...
IMAGE
Improving Lawn Soil The soils underneath our lawns are more...
Lawn Watering
IMAGE
When is the best time to water lawns Correct Lawn Watering Times...
IMAGE
Adjusting From Excessive Watering Reducing Excessive Water Usage We...
IMAGE
Correct retic sprinkler heights Lawn Sprinkler Heights Whether laying...
Lawn Mowing
IMAGE
Planning saves time and gives a betterquality finish every time we...
IMAGE
Push Lawn Mower Introduction to Push Mowers The push lawn mower is a...
IMAGE
Raise Mowing Heights For Soft Buffalo Lawns One of the biggest...
Weeds | Pests | Diseases
IMAGE
Mature Wintergrass with seeds How To Kill Winter Grass Winter grass...
IMAGE
Storing lawn pesticides and weed killers Storing Lawn and Garden...
IMAGE
Dollar Spot (Sclerotinia homeocarpa) Dollar Spot Disease Dollar Spot...
Lawn Varieties
IMAGE
Finding A Lawn Replacement There are many areas of our yards that...
IMAGE
Durban Grass Characteristics of Durban Grass A old favourite lawn in...
IMAGE
A Palmetto Soft Buffalo Lawn Palmetto Soft Leaf Buffalo Palmetto,...
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:
The old saying... "1 year of seeding equals 7 years of weeding" is TRUE. Seeds can stay in the ground for many years, only germinating a percentage each year. This ensures the survival of the plant species - where if conditions aren't right for it's survival this year - conditions will be right at some time in the next few years.
Professional lawn care videos sharing quality lawn care tips in an easy video format - click to watch
preparing soils for new lawns 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
Using Artificial Fertilisers In Organic Lawn Care The principles of organic lawn care involve...
IMAGE
Natural control of lawn weeds Controlling Lawn Weeds Without Pesticides Weeds don't need to...
IMAGE
Low toxic natural methods to control ants Control Ants In The Lawn, Garden and Paving Ants can...
A low maintenance and environmentally friendly lawn for all warmer regions
IMAGE
Roadsides are perfect for Zoysia Zoysia - The Great Choice For Low & Medium Use Government...
IMAGE
Who Shouldn't Choose A Zoysia Lawn We understand that Zoysia will not be the best lawn for...
IMAGE
Zoysia Tenuifolia - A Very Different Lawn Zoysia tenuifolia is very different from all other...
Lawn care discussions and observations in a friendly blog format from The Lawn Guide
IMAGE
Lawn Club is a new lawn care, lawn mowing, and gardening contractors business information...
IMAGE
Understanding Couch Grass In Queensland Like so many other aspects of Australian life, prior...
IMAGE
As many people who have visited The Lawn Guide over the years, and since our first launch in...

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