Lawn Tips
Spartan Pre-Emergent Herbicide - Weed Prevention
Spartan Pre-Emergent Herbicide - Weed Prevention
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Stop weeds before they ever appear
Spartan is a selective pre-emergent. It forms a barrier that stops weed seeds establishing, so you prevent the weeds rather than spraying them once they are already up.
- Prodiamine at 480g/L, a proven pre-emergent active
- Targets Winter Grass (Poa annua), Summer Grass and crowsfoot
- Works on the root tips of newly germinated weeds
- 500ml covers roughly 1,250m² of lawn
Three steps to a weed barrier
Work out your area, then mix Spartan at the label rate into water in your sprayer.
Cover the whole area in one even pass so the barrier is consistent.
Water it in afterwards. A pre-emergent has to be watered in to settle into the soil and form the weed barrier.

What it is, and how to use it
- Prodiamine at 480g/L, suspension concentrate
- Selective pre-emergent for established turf
- Controls Winter Grass, Summer Grass and crowsfoot
- Acts on the root tips of newly germinated weeds
Existing weeds are not controlled. Spartan prevents the next lot coming through, so timing matters.
| Rate | Per label |
| Coverage | 500ml ≈ 1,250m² |
| Then | Water in |
Mix and apply at the rate on the label for your situation, then water in. Always read the label before use.
Pure WetterMeasure your lawn
Enter your address, then trace your lawn on the satellite map.
Click 'Start drawing', then click each corner of your lawn on the map. Click the orange first point (or the button) to close the shape. Drag any point to adjust.
Prevent, don't chase
Good to know
What does a pre-emergent actually do?+
When should I apply it?+
Do I need to water it in?+
Is it safe for my lawn?+
Will it kill weeds I can already see?+
How much area does it cover?+
Stop the weeds before they start
Lay the barrier down at the right time and prevent the weeds instead of chasing them all season. One 500ml bottle covers about 1,250m².
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