Spartan Herbicide - What is pre-emergent herbicide and when should it be applied?

Pre-emergent herbicides such as Spartan are great at preventing weeds in lawns and gardens and applying at the correct time can make them far more effective.

Looking for long-lasting pre-emergent weed control? Discover how Spartan Herbicide helps stop weeds before they start. Ideal for professional and home lawn care.

What Is Spartan Herbicide?

Spartan Herbicide is a powerful pre-emergent weed killer that prevents unwanted annual grasses and broadleaf weeds before they emerge. It's widely used in turf management, particularly in Australia, for its long-lasting results and reliability in both warm and cool climates.

How Spartan Herbicide Works

Spartan contains the active ingredient Prodiamine, which forms a protective barrier in the soil. This stops weeds like crabgrass, winter grass, and crowsfoot from germinating and taking root.

Pro Tip: Spartan does not kill existing weeds. It’s a preventative solution, best used before weed seeds germinate.

When and How to Apply Spartan Herbicide

Timing is everything with pre-emergents. Apply Spartan before the weed seeds start sprouting — ideally at the beginning of the weed’s growing season.

Ideal Application Times:

  • Late summer to early autumn (for winter weeds)
  • Late winter to early spring (for summer weeds)

Application Steps:

  1. Mix Rate: Between 10 - 40mL per 100sqm. Check label for exact rate for your situation.
  2. Use a pressure sprayer: Apply evenly over your lawn.
  3. Water in: Spartan must be watered in within 7 days to activate the herbicide barrier.
  4. Avoid disturbance: Don’t aerate or disturb the soil after application.

What Weeds Does Spartan Control?

Spartan targets a broad range of common turf weeds including:

  • Winter grass (Poa annua)
  • Summer grass
  • Crabgrass
  • Crowsfoot
  • Chickweed (in combination with other pre-emergents)

🧪 Use a post-emergent herbicide such as Odessa to treat weeds that have already appeared.

Is Spartan Herbicide Safe?

Yes, when used correctly. Spartan is safe for most warm-season turf types, including:

  • Buffalo
  • Couch
  • Kikuyu
  • Zoysia

Safety Guidelines:

  • Keep pets and children off treated areas until watered in and dry
  • Wear gloves, long sleeves, and eye protection during mixing and spraying
  • Avoid applying to newly seeded lawns

Spartan vs. Other Pre-Emergent Herbicides

Feature

Spartan Herbicide

Other Pre-Emergents

Active Ingredient

Prodiamine

Varies

Duration of Control

Up to 6 months

3–4 months

Rainfast

After watering in

Depends

Turf Safety

Excellent

Varies

Application Flexibility

Home & commercial use

Varies

Key Features:

  • Controls winter grass (Poa annua) and other annual weeds
  • Safe for use on established turf
  • Provides up to 6 months of residual control
  • Easy to apply with a standard sprayer

Where to Buy Spartan Herbicide

Spartan Herbicide is available online and at a range of garden centres across Australia.

FAQs About Spartan Herbicide

Q: Does Spartan Herbicide kill weeds I can already see?

A: No. It’s a pre-emergent herbicide, meaning it prevents weeds from sprouting. Use a post-emergent alongside it for visible weeds.

Q: How long does Spartan last?

A: Spartan provides weed prevention for 4 to 6 months, depending on application rate and weather.

Q: Can I use Spartan on new lawns?

A: No. Wait at least 6 weeks after seeding or laying turf before applying Spartan. A minimum of 3cm root depth is required before application to new lawns.

Q: How long before I water it in?

A: Water Spartan into the soil within 7 days of application for activation.

Final Thoughts

If you're looking to prevent weeds before they take over your lawn, Spartan Herbicide is one of the most effective and long-lasting solutions on the market. With professional-grade control and safe use on a variety of turf types, Spartan is a smart investment for lawn lovers and landscapers alike.

💡 Pro Tip: Use Spartan in a seasonal weed control program for a lawn that stays green and weed-free all year long.

Mighty Goat Lawns 🐐

Published by: Vedran Malic

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