The roundup guide to garden weeds

Broadly speaking, the weeds you’ll see in your garden can be divided into four groups: perennial weeds that have deep roots and can be tough and persistent. They survive for many years if not treated; easier-to-shift annual weeds that die after releasing seeds that germinate and grow next season; woody weeds are stubborn perennials, designed to survive in difficult conditions. Finally lawn weeds that grow so quickly they can take over the grass.

Bindii, Jo-Jo (Tribulus terrestris)

A prostrate annual bearing spiny fruits that stick to clothing and pet hair and are painful to walk on, Bindii is one of the most widely spread weeds in Australia, occurring in all States... read more

Boneseed (Chrysanthemoides monilifera ssp monilifera)

Boneseed has been declared a weed of national significance. It is a widespread environmental weed in the high winter rainfall areas of southern Australia and is particularly invasive in coastal and bushland areas... read more

Capeweed (Arctotheca calendula)

A drive in the country in spring often highlights paddocks covered in yellow – a sure sign of a major infestation of Cape Weed, which hails originally from Lesotho and South Africa. An annual, rosette-forming herb with a deep tap root... read more

Common Sowthistle or Milk Thistle (Sonchus oleraceus)

A common annual weed in Australian gardens that, if left to grow unhindered, may exceed a height of two metres... read more

Lantana (Lantana camara)

A weed of national significance, Lantana was brought here in the early – mid 1800s as an ornamental plant from its native tropical Americas and is now widespread in tropical, sub-tropical and warm temperate areas, where it smothers native flora... read more

Soursob (Oxalis pes-caprae)

Soursob, a South African native, is a very invasive plant that produces a main tuber-like root, plus several small bulbs. It has three-lobed, heart-shaped leaves with brown or purple spots on top. It occurs widely throughout the cooler regions of Australia... read more

Need help?

When can my children/pets use an area where Roundup has been applied?

The moment Roundup has dried. It deactivates on contact with soil, and is degraded by micro organisms leaving no residues in the soil.

Why has Roundup killed my lawn?

Roundup should never be used on lawns. Because it kills all plants with green leaf tissue, Roundup is actually a very effective grass killer.

When can I replant/reseed after treatment?

Immediately, if you want to. We recommend, however, leaving the weeds at least 7 to 10 days to absorb the optimum amount of Roundup.

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