While weeds are visually unasthetic, they also compete with your desirable turfgrass for light, nutrients and water which can be to the detriment of your turf. They also have a tendency to grow faster than your lawn, requiring more unwanted attention.  

When controlling weeds it is essential to first identify the weed or weeds you have. Turf Finder has gathered a detailed collection of narrow, broadleaf and grass weeds commonly seen growing within turfgrass. It is then important to look at an integrated control program of how you can treat and reduce future weed growth and development. 

Pre-emergent weed control may be used to control a number of weeds. The pre-emergent herbicide, applied in either granular or liquid form, provides a barrier, which kills germinating weeds before they develop. Refer to their irrespective product lables for further details.

Pesticides work best when the target weed is actively growing. This will be different for different weeds. To ensure an effective kill, do not mow the turfgrass to be sprayed at least 3 days prior and after herbicide application. When spraying pesticides, either in a spray on bottle or knapscak, make sure you prevent any drift from your pesticide spray so you don't harm other plants in your, or your next-door neighbour's yard. Also be aware that some herbicides you may want to use to control any weeds in your lawn may also kill your turf. Be sure to read the product label carefully and only apply turf registered prodcuts.

If you do not wish to spray any pesticides, please visit our Turf Services section to see if a local contractor is available in your area once you have identified what weeds require control.


Turfgrass Weeds

Below we have provided a range of turfgrass weeds which can be found within warm- and or cool-season turfgrasses. Included within each weed thumbnail are technical descriptors and control options for both the home owner and professional sports turf ground manager or superintendent. For further information on pesticide regulations and what you can legally spray, please visit our Pesticides page.

African lovegrass

Eragrostis curvula


Asthma plant

Euphorbia hirta


Awnless barnyard grass

Echinochloa colona


Bahia grass

Paspalum notatum


Billygoat weed

Ageratum conyzoides



Soliva sessilis


Black medic

Medicago lupulina


Blue heliotrope

Heliotropium amplexicaule


Blue snake weed

Stachytarpheta jamaicensis


Burr medic

Medicago polymorpha



Arctotheca calendula


Carrot weed

Cotula australis



Hypochoeris radicata



Stellaria media



Trifolium repens


Cobbler's pegs

Bidens pilosa


Creeping indigo

Indigofera spicata


Creeping oaxlis

Oxalis corniculata



Eleusine indica



Gnaphalium spp.



Taraxacum officinale



Emilia sonchifolia



Senecio madagascariensis


Flaxleaf fleabane

Conyza bonariensis



Cardamine hirsuta


Gomphrena weed

Gomphrena celosioides


Green amaranth

Amaranthus viridis


Hairy armgrass

Urochloa piligera


Indian bluegrass

Bothriochloa pertusa


Khaki Weed

Alternanthera pungens


Lambs tongue

Plantago lanceolata


Lilac oxalis

Oxalis debilis


Liverseed grass

Urochloa panicoides


Long Storksbill

Erodium botrys



Malva spp.


Mexican poppy

Argemone ochroleuca


Milk thistle

Sonchus oleraceus



Bryophyllum spp.


Mouse-ear chickweed

Cerastium glomeratum


Mullumbimby couch

Cyperus brevifolius



Cyperus rotundus


Old World Diamond Flower

Hedyotis corymbosa


Paspalum dilatatum

Paspalum dilatatum



Sagina procumbens



Portulaca oleracea


Pink purslane

Portulaca oleracea



Poa annua


Red caustic weed

Euphorbia prostrata


Rhodes grass

Chloris gayana



Richardia Humistrata



Lolium spp.


Scarlet Pimpernel

Lysimachia arvensis


Sensitive plant

Mimosa pudica


Shepherds Purse

Capsella bursa-pastoris


Slender celery

Cyclospermum leptophyllum


Summer grass

Digitaria spp.


Three-flower beggarward

Desmodium triflorum


Turnip weed

Rapistrum rugosum


Water couch

Paspalum distichum


White root

Lobelia purpurascens


Wild radish

Raphanus raphanistrum



Eragrostis tenuifolia



Polygonum heterophyllum


Yellow Wood Sorrel

Oxalis corniculata