Westland Aftercut Autumn Lawn Feed & Moss Killer 5.6kg, 160m²

Prepare your lawn for the colder months with Westland Aftercut Autumn All-in-One Lawn Feed and Moss Killer 5.6 kg - a granular autumn lawn treatment from the Westland Aftercut range that greens, feeds and conditions your lawn in a single application. Designed for use from early September to mid-November, this autumn lawn feed toughens grass and strengthens roots so your lawn comes through winter in better shape and is ready to grow away vigorously next spring.

The high-potassium formulation is designed specifically for autumn use, helping the sward to harden off and produce a hard-wearing lawn that can withstand cold, wet weather and frost. Added iron controls moss so it blackens within a couple of weeks of application, while the gentle nitrogen dose delivers an autumn green-up without the flush of soft surge growth that you don't want going into winter. The 5.6 kg pack treats up to 160 m², making it the ideal size for medium to large UK lawns.

Key Features

• All-in-one autumn lawn feed - greens, feeds and conditions in a single pass
• Kills moss - iron content blackens moss within 2 weeks, ready for raking out
• Strengthens roots for winter protection - high-potassium formulation toughens the sward
• Hard-wearing finish - helps the lawn withstand cold, wet weather and frost
• No surge growth - autumn formulation avoids the soft flush you don't want before winter
• Treats up to 160 m² - ideal for medium to large UK lawns
• Granular feed - easy to apply by hand or with a lawn spreader
• Application window: early September to mid-November

Product Details

• Brand: Westland (Aftercut)
• MPN: 20400592
• EAN: 5023377020131
• Pack size: 5.6 kg (2 x 2.8 kg refill cartons)
• Coverage: up to 160 m²
• Active ingredients: nitrogen, potassium, iron
• Item form: granules
• Application method: by hand or with a lawn spreader
• Application timing: early September to mid-November
• Where to use: outdoor front and back lawns
• Country of origin: United Kingdom
• Product type: Autumn Lawn Care

How to Use

When to apply: Apply between early September and mid-November, on a dry day when the lawn is actively growing. Avoid applying during frost, heavy rain, drought or windy conditions to prevent drift and ensure even coverage.

Application by hand: Distribute the granules evenly across the lawn at the recommended rate to cover 160 m². For the most even spread, apply in two passes at half the rate - the second pass at right angles to the first.

Application by spreader: Set your lawn spreader to the recommended setting and walk at a steady pace across the lawn in even strips, closing the spreader off at the end of each strip to avoid over-dosing.

After application: After around 7 days, expect the lawn to become greener and any moss to blacken as it dies. For heavy moss infestation or if moss returns, re-treat the lawn after 6 weeks (maximum 2 treatments per year). Water in thoroughly if no rain falls within 2 days. Keep children and pets off the treated area until the product has been watered in and the grass is completely dry. Iron-based feeds can stain hard surfaces and clothing, so sweep up any spillages from paving, decking or tarmac immediately.

For best results: Mow the lawn 2 to 3 days before treatment, and leave 2 to 3 days after treatment before mowing again. Rake out dead moss around 2 weeks after application.

Safety & Cautions

• Use protective equipment (gloves) during application
• Keep people and pets off the treated area until moss has died and been removed
• Keep out of the reach of children and pets
• Avoid contact with skin and eyes
• Do not ingest
• Wash hands after use
• This product will stain hard surfaces, clothing and footwear - sweep up spillages immediately
• Do not apply during drought, frost or when heavy rain is expected
• Wait at least 6 weeks before reapplying for heavy moss infestation or moss return
• Always read the label and product information before use

Frequently Asked Questions

When should I apply Westland Aftercut Autumn?
Apply between early September and mid-November, on a dry day when the lawn is actively growing. This timing lets the autumn feed prepare the lawn for the cold, wet months ahead without forcing a flush of soft growth that could be damaged by frost.

How much lawn will a 5.6 kg pack cover?
One 5.6 kg pack (supplied as 2 x 2.8 kg refill cartons) treats up to 160 m², making it ideal for medium to large UK lawns. If your lawn is smaller, the 2.8 kg / 80 m² size is also available in the Aftercut Autumn range. For very large lawns, the 12.6 kg / 350 m² size is also available.

How long does it take to see results?
You can expect a visible green-up in as little as 7 days after application, thanks to the nitrogen content. The iron sulphate takes around 2 weeks to blacken moss, after which the dead moss can be raked out.

Will it kill moss in my lawn?
Yes. The added iron content blackens moss within around 2 weeks of application. Once the moss has died back, rake it out to allow the grass to fill in the gaps. For heavy moss infestation or if moss returns, re-treat the lawn after 6 weeks.

Will my lawn grow faster after applying this?
No - that's the point of an autumn feed. The high-potassium formulation hardens the grass off for winter without the surge of soft top growth that a spring or summer feed would produce. You should see a gentle green-up but no excess mowing.

Is it safe for children and pets?
Keep children and pets off the treated area until the product has been thoroughly watered in and the grass is completely dry, and until any moss has died and been removed. The iron content can transfer onto paws and shoes, which can then stain indoor surfaces, so it's important to wait until the lawn has dried before allowing access again.

Can I use this on a newly laid lawn?
No. Wait until the lawn is established, usually around 3 months after sowing seed or laying turf, before applying any autumn lawn treatment.

How is this different from a spring/summer lawn feed?
Spring and summer feeds are typically high in nitrogen to drive leafy top growth. Autumn feeds like Aftercut All-in-One Autumn are deliberately low in nitrogen and high in potassium to toughen the sward and strengthen roots for winter, rather than encouraging new growth.

Can I apply it by hand or do I need a spreader?
Either method works. Apply by hand for small lawns, taking care to spread the granules as evenly as possible. For larger or more uniform coverage, a lawn spreader gives the most consistent results.

Will this stain my patio or paving?
Iron-based feeds can leave brown stains on hard surfaces such as paving, decking and tarmac, as well as on clothing and footwear. Sweep up any spillages from hard surfaces immediately and dispose of carefully.

How soon after treatment can I mow the lawn?
Leave 2 to 3 days after application before mowing. It's also best to mow 2 to 3 days before treatment so the grass is at a normal height when you apply.