---
product_id: 123063906
title: "A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg"
brand: "a1lawn"
price: "HK$1545"
currency: HKD
in_stock: true
reviews_count: 8
category: "A1 Lawn"
url: https://www.desertcart.hk/products/123063906-a1-lawn-double-strength-feed-weed-and-moss-killer-4
store_origin: HK
region: Hong Kong
---

# Rapid action with 3 active weed killers 4-in-1 formula for weed, moss, feed & iron Covers up to 280m² per 10kg bag A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg

**Brand:** a1lawn
**Price:** HK$1545
**Availability:** ✅ In Stock

## Summary

> 🌱 Transform your lawn, reclaim your weekends!

## Quick Answers

- **What is this?** A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg by a1lawn
- **How much does it cost?** HK$1545 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/123063906-a1-lawn-double-strength-feed-weed-and-moss-killer-4)

## Best For

- a1lawn enthusiasts

## Why This Product

- Trusted a1lawn brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Time-Saving Efficiency:** Covers a large 280m² area, so you spend less time treating and more time enjoying your lawn.
- • **Effortless Lawn Revival:** Powerful 4-in-1 action kills weeds, moss, feeds, and boosts iron for a vibrant green lawn.
- • **Season-Long Performance:** Use from March to October for continuous lawn health and lush growth all year round.
- • **Professional-Grade Lawn Care:** DEFRA & FERA certified UK formulation ensures top-tier quality and compliance.
- • **Trusted Expertise Since 2010:** Backed by over a decade of proven results and thousands of satisfied customers.

## Overview

A1 Lawn Double Strength Feed, Weed & Moss Killer is a DEFRA-certified, professional-grade 4-in-1 lawn treatment combining high nitrogen feed, 8% iron, and three powerful weed killers. Designed for rapid, broad-spectrum control, it covers up to 280m² per 10kg bag and is effective throughout the growing season, delivering lush, green lawns with minimal effort.

## Description

Product Description

Review: Bright green lawn - Works well, nice green lawn, turned the moss brown and killed the weeds. Just what I hoped for. Cheaper than the well known lawn care provider I was using!
Review: Great product - It is very important to use this sparingly (as in the instructions) it is very strong and will kill the grass if thrown by hand or not spread using a fine spreader. It is also quite smelly and needs gloves and avoidance of children and pets for a few days or until it has dissolved. Having used quite a few moss/weed killers from the garden centre and online retailers i would rate this in the top 3. It is excellent and works well and quickly (if you have the right conditions) and leaves my grass ready to be seeded where the weeds have taken over !

## Features

- CERTIFIED PROFESSIONAL GRADE - Formulated and produced in the UK to professional-grade standards, this lawn treatment is certified by DEFRA, FERA, and SASA, ensuring quality and compliance.
- GET YOUR WEEKENDS BACK - Stop spending hours fighting weeds and moss. This powerful 4-in-1 formula does the hard work for you, so you can enjoy a lush, green, and healthy lawn without the constant hassle.
- RAPID 4-IN-1 ACTION - Features a high-nitrogen NPK 10-2-2 formula for lush growth, 8% Iron (Fe) to kill moss, and three active weed killers (Dicamba, 2,4-D, Mecoprop-P) for broad-spectrum control.
- YEAR-ROUND LAWN REVITALISATION - Suitable for use throughout the growing season from March to October, with a low application rate of 10kg covering up to 280m² for maximum efficiency.
- TRUSTED UK EXPERTISE - Backed by over a decade of experience, A1 Lawn has been delivering high-quality, freshly produced fertilisers to hundreds of thousands of satisfied domestic and trade customers since 2010.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00KM6ZEH6 |
| Best Sellers Rank | 17,285 in Garden ( See Top 100 in Garden ) 66 in Moss Control |
| Brand | A1Lawn |
| Brand Name | A1Lawn |
| Coverage | 280 Square meters |
| Customer Reviews | 4.3 out of 5 stars 300 Reviews |
| Item Form | Granules |
| Item form | Granules |
| Mixing Ratio | 10-2-2 |
| Number of Packs | 1 |
| Part Number | DP-WCSK-7KXE |
| Specific Uses For Product | Lawn Care |
| Specific uses for product | Lawn Care |
| Target Species | Grass, Lawn |
| Unit Count | 10000 gram |
| Unit count | 10000 gram |

## Product Details

- **Brand:** A1Lawn
- **Item form:** Granules
- **Specific uses for product:** Lawn Care
- **Unit count:** 10000 Grams

## Images

![A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg - Image 1](https://m.media-amazon.com/images/I/71gwKX0QPqL.jpg)
![A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg - Image 2](https://m.media-amazon.com/images/I/91v0abt3SfL.jpg)
![A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg - Image 3](https://m.media-amazon.com/images/I/911cOybpQJL.jpg)
![A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg - Image 4](https://m.media-amazon.com/images/I/81rGqSBdueL.jpg)
![A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg - Image 5](https://m.media-amazon.com/images/I/81MqAxXkVOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bright green lawn
*by J***V on 13 June 2026*

Works well, nice green lawn, turned the moss brown and killed the weeds. Just what I hoped for. Cheaper than the well known lawn care provider I was using!

### ⭐⭐⭐⭐ Great product
*by H***R on 13 July 2025*

It is very important to use this sparingly (as in the instructions) it is very strong and will kill the grass if thrown by hand or not spread using a fine spreader. It is also quite smelly and needs gloves and avoidance of children and pets for a few days or until it has dissolved. Having used quite a few moss/weed killers from the garden centre and online retailers i would rate this in the top 3. It is excellent and works well and quickly (if you have the right conditions) and leaves my grass ready to be seeded where the weeds have taken over !

### ⭐⭐⭐⭐⭐ Lawn restoration in a bag
*by D***. on 16 May 2026*

After a few days moss turns black and can be scarified out of the lawn. Other weeds get killed more slowly and they’re squeezed out by the spurt the grass puts on. This is an effective product at a reasonable price and it will help improve the quality of the lawn. Very happy- much cheaper than Green Thumb that used a similar product but at much greater cost.

## Frequently Bought Together

- A1 Lawn Double Strength Grass Feed, Weed & Moss Killer 10kg (280m2) – [10-2-2] Nitrogen Rich with Phosphorous, Potassium & Iron - UK Professional Grade to Care For Your Lawn
- A1 Lawn Ultimate Spring Summer Lawn Fertiliser, 10kg (280m2) – 10-4-4 Nitrogen-Rich Lawn Feed with Potassium & Phosphorus to Boost Lawn Growth After Colder Months – UK Professional Grade
- A1 Lawn AM 24 Premiership Pro Sports Quality Grass Seed, 5kg (140m2)– Fresh and Fast Growing, Pet & Child Friendly – Patch Repair, Over Seeding, New Lawns & Thickening – DEFRA Approved Lawn Seed

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**Shop now:** [https://www.desertcart.hk/products/123063906-a1-lawn-double-strength-feed-weed-and-moss-killer-4](https://www.desertcart.hk/products/123063906-a1-lawn-double-strength-feed-weed-and-moss-killer-4)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-08-13*