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broadleaf weed with triangular leaves and fuzzy seed pods

The vertically growing taproot is resilient, and even small pieces left alive in the soil after removal results in the dandelion plant’s regeneration.

You can use herbicide on Canada thistle, but it will likely take several applications to kill its extensive taproot and branching roots completely.

Dandelions

The flowers of the daisy are complex around a thick yellow center. The flowers can be white to pinkish-red and can bloom throughout the entire year. Even in the dead of winter, you might just find a daisy flower.

The idea is that the weed will deplete all of its energy reserves growing new vegetation while not allowing those reserves to be built back up. This will eventually kill the enormous taproot.

That’s what this article is all about. We’re going to look at common weeds with white, yellow, pink, purple, and blue flowers. You’ll not only have a visual representation of each weed to guide you, but included in each weed identification will be the physical description of each of these pesky invaders. You’ll also learn about the problems they can cause in your lawn along with how you can control and eliminate them from your yard.

Dandelion is perennial weed which often become a nuisance in turf. It is quite drought tolerant with a deep tap root able to withstand dry conditions beyond what the turf can handle. On maturing, the yellow flowers become the fluffy white balls we know as “fairies”. The cycle of the dandelion can be controlled by regular lawn mowing whenever its flowers or seed heads are apparent, similar to capeweed with constant removal of its seeds. Hand weeding is easy and…

Commonly referred to Prostrate Spurge, Creeping Spurge and Spotted Spurge. It’s an aggressive prostrate or low growing weed, resembling a mat up to a meter in diameter when established. Has opposing leaves along the stems and runners, and often seen with a darker spot in the middle of each leaf. The runners and stems are soft, red to brown in colour, sappy with a milk appearance when cut. A very common weed found in bare or thin lawns, it’s resistant…

Summer grass is common in Australia’s lawns. It is a very fast-growing weed which sends out its shoots in all directions from its centre and spreads through stolons (above ground runners). Summer grass stems are either brown or red, with thin grey-green leaves and fine vertical seed heads that are spiky. A vigorous seeding plant, summer grass needs to be removed from lawns immediately. It’s like your lawn – lawn mowing has no impact on its control or growth, other…

Dandelion (Taraxacum Officinalis)

Burr medic is another of the trifoliate type lawn weeds, meaning its leaves are grouped together in bunches of three. With serrated green leaves, it has long reddish creeping stems, and small groups of pea sized often yellow flowers. It grows prickly burrs, which begin as small green pods and later dry out, becoming brown in colour. Similar trifoliate weeds are clover and oxalis, and these three broadleaf weeds can be easily confused for each other. If you’re not sure,…

Mullumbimby couch is a perennial grass-like sedge up to 15 cm high with dark green, glossy, strap-like leaves. It has tough, long rhizomes that are red to purple in colour and triangular stems in cross-section which is characteristic of sedges. This sedge is in mostly observed in flower through spring and summer and presents as a single round, compact spike with three short, curved leaves protruding from the base of the seed head. Mullumbimby couch grows best in areas of…

Pearlwort is a dense, low-growing broadleaf weed with smooth, slender stems rooting at the nodes. Oppositely arranged, thin, grassy like leaves up to 14 mm long branch out from the stem at close intervals, not broadleaf in appearance. These heavily branched stems form a mat-like growth habit that forms thick ground cover. Small, inconspicuous flowers appear in spring, summer and autumn, with green sepals and tiny white petals. Flowers remain closed in buds and are visible only briefly as they…

Mallow or marshmallow is native to Europe, Asia and northern Africa but has made itself at home in all Australian states. It grows in every soil type and is commonly seen in disturbed areas such as roadsides, cultivation, around buildings, stock yards, along watercourses and in rundown pastures. At Lawn Addicts, we provide recommended herbicides and lawn care programs to control mallow and other broadleaf weeds.