best herbicide for fescue lawns LAWNZ Guardian Herbicide

best herbicide for fescue lawns LAWNZ Guardian HerbicideFor: Fine Fescue lawns ONLY, at least 6 months old Targets: Persistent grass weeds poa annua, summer grass, twitch couch Active Ingredient: 100g L Haloxyfop Application Rate: 15ml in 810L of water per 100m Best used in: Spring, summer, or autumn while your lawn is actively growing What it does Guardian is a selective herbicide designed for one purpose protecting your Fine Fescue lawn from persistent grassy invaders. Whether you're battling summer

For: Fine Fescue lawns ONLY, at least 6 months old
Targets: Persistent grass weeds – poa annua, summer grass, twitch/couch
Active Ingredient: 100g/L Haloxyfop
Application Rate: 15ml in 8–10L of water per 100m²
Best used in: Spring, summer, or autumn while your lawn is actively growing

What it does

Guardian is a selective herbicide designed for one purpose — protecting your Fine Fescue lawn from persistent grassy invaders. Whether you're battling summer grass, poa annua, or twitch, Guardian gets to work after weeds have emerged, stopping their spread and restoring your lawn’s clean, uniform appearance.

⚠️ This product is specifically for Fine Fescue lawns and should not be used on other turf types.

Key benefits

• Targets hard-to-control grass weeds – Effective on poa annua, summer grass, twitch/couch
• Post-emergent control – Apply after weeds are visible for spot-treatment precision
• Selective protection – Won’t harm your lawn when used correctly on Fine Fescue
• Ideal for fussy turf types – Perfectly suited for Fine Fescue’s unique needs

When and how to apply

• Apply during active growth – spring through autumn
• Mix 15ml in 8–10L of water per 100m²
• Spray directly onto affected areas using a fine mist
• Avoid mowing 3 days before and after application
• Do not apply to other lawn types – may cause damage

✅ For established Fine Fescue lawns 6+ months old

🐾 Safe once fully dry

💡 Use with LAWNZ Marksman for even spray coverage and visible application control

✅ Trusted by turf professionals and fussy lawn owners

✅ Not sure how to apply it? Read our How-To Guide