Selective Weed Control That Protects Your Grass

Weeds don’t just ruin the look of your lawn — they steal nutrients, water and sunlight from your grass.

At Fitfit Garden, we stock a carefully selected range of selective lawn weed killers designed to eliminate broad-leaved weeds without damaging your turf. Whether you’re spot-treating patches or tackling a full lawn treatment, we have the right solution to restore a thick, healthy, green lawn.

• Kill weeds to the root

• Protect your grass

• See visible improvement fast

Shop now and take back control of your lawn.

What Is a Selective Lawn Weed Killer?

A selective weed killer targets broad-leaved weeds while leaving grass unharmed. That makes it ideal for established lawns, sports turf and ornamental grass areas.

Unlike total weed killers, selective herbicides remove weeds such as:

• Dandelions

• Clover

• Daisies

• Plantain

• Buttercup

• Docks

• Speedwell

• Yarrow

They work systemically by moving through the plant to kill the root preventing regrowth.

Best Lawn Weed Killers Available at Fitfit Garden

We stock trusted brands that deliver proven results.

Best Overall – Weedol Lawn Weed Killer

A liquid systemic formula that kills weeds down to the root. Ideal for general lawn weed control and long-lasting results.

Best Ready-To-Use – Resolva Lawn Weed Killer (1L)

Perfect for quick patch treatments. No mixing required. Convenient trigger spray for easy application.

Best for Tough Weeds – Greenforce Lawn Weedkiller

Highly effective against persistent broadleaf weeds. Suitable for use with a sprayer or watering can fitted with a fine rose.

Best for Large Areas – Depitox 500 Selective Weed Killer (5L)

Professional-strength solution for broadleaf control in larger lawns and turf areas.

When Should You Apply a Lawn Weed Killer?

For best results, apply when weeds are actively growing, usually:

• Spring (April onwards)

• Late summer / Early autumn

Avoid applying:

• During drought

• During freezing temperatures

• Just before heavy rain

• On windy days (to prevent drift)

Important: New Lawn Advice

Do not apply weed killer to young grass.

• Wait 2–6 months after laying turf or sowing seed, depending on the product label.

• Always follow manufacturer instructions carefully.

Using weed killer too early can damage developing grass roots.

How to Apply Lawn Weed Killer Correctly

Application matters for effective results.

• Use a garden sprayer for even coverage

• Or use a watering can fitted with a fine rose

• Apply evenly across the affected area

• Avoid overlapping to prevent grass scorch

After treatment:

• Leave weeds untouched for several days

• Allow 2–6 weeks for full results

• Do not compost initial clippings unless label permits

Common Lawn Weeds in the UK

Most lawn weeds are low-growing, resilient plants that tolerate mowing and foot traffic. They quickly colonise bare or weak patches of grass.

Common UK lawn weeds include:

• Clover

• Creeping buttercup

• Dandelion

• Daisy

• Plantain

• Couch grass

• Speedwell

• Sheep’s sorrel

• Yarrow

A thick, healthy lawn naturally reduces weed invasion — which is why feeding and overseeding are just as important as weed control.

Restore & Strengthen Your Lawn After Treatment

After removing weeds, strengthen your turf with:

• Signature Spring Lawn Feed

• Autumn Lawn Feed

• Hard Wearing Luxury Lawn Seed

• Premium Shade Grass Seed

• Premiership Lawn Seed

Healthy, dense grass crowds out future weeds naturally.

Tougher Weeds? Try Brushwood Killer

If you're dealing with:

• Brambles

• Nettles

• Thistles

• Woody weeds

Explore our SBK Brushwood Killer Collection for powerful root-kill control in non-crop areas and rough grassland.

Why Buy Lawn Weed Killers from Fitfit Garden?

• Competitive UK pricing

• Carefully selected trusted brands

• Fast & reliable delivery

• Professional and domestic options

• Complete lawn care solutions in one place

We don’t just sell weed killers, we help you build a better lawn.

Frequently Asked Questions

How long does selective lawn weed killer take to work?

You’ll usually see results within 2–6 weeks. These products work systemically, so they take time to kill the roots.

Can I mow after applying weed killer?

Wait at least 24–48 hours before mowing unless the label states otherwise.

Can pets go on treated lawns?

Keep pets off the lawn during application. Once dry, most products are safe — always check the label.

Do I really need weed killer?

If you prefer a manicured, all-grass lawn, selective weed killer helps maintain a uniform finish. If you welcome wildflowers and biodiversity, you may choose non-chemical control methods instead.

Take Action Today

Stop letting weeds compete with your grass.

Browse our Lawn Weed Killer Collection at Fitfit Garden and choose the right solution for a healthier, thicker, greener lawn.

Your perfect lawn starts here.