Clear winter grass and ryegrass from couch
A post-emergent selective herbicide that takes out winter grass and ryegrass already growing in your couch, while leaving the couch itself alone.
- Controls winter grass and ryegrass in common and hybrid couch
- Strong root uptake, so you can water in just one hour after spraying
- Short soil life lets you overseed 7 to 10 days later
- No delay to couch spring green-up, and safe on newer turf from 5 weeks
Spray it in three steps
1 to 1.2g per 100m² into water in your sprayer. A 25g pack treats up to 2,000m².
Apply in autumn or spring when weeds are actively growing and it is above 18C. Avoid cold under 15C.
You can water it in from one hour after spraying, which reduces tracking to non-target areas.
What it is, and how to use it
- Post-emergent control of winter grass and ryegrass
- For common and hybrid couch lawns
- Strong root uptake, water in from one hour later
- Short soil life, overseed 7 to 10 days later
Coliseum is not a pre-emergent, so it works on weeds that are already up and growing. Always read and follow the label.
| Rate | 1 to 1.2g / 100m² |
| Coverage | 25g treats up to 2,000m² |
| When | Autumn or spring |
Apply when weeds are actively growing and temps are above 18C. Avoid cold conditions under 15C.
Pure Lawn Tips MixMeasure your lawn
Enter your address, then trace your lawn on the satellite map.
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How it compares
Good to know
What does it control?+
Is it a pre-emergent?+
When should I spray?+
How soon can I water in or overseed?+
Can I use it on a newish couch lawn?+
Clear winter grass from your couch
Take out winter grass and ryegrass that are already up, without holding up your couch green-up or your next overseed.
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