---
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: "€ 91.93"
currency: EUR
in_stock: true
reviews_count: 8
category: "A1 Lawn"
url: https://www.desertcart.hr/products/123063906-a1-lawn-double-strength-feed-weed-and-moss-killer-4
store_origin: HR
region: Croatia
---

# High iron 8% for rapid moss elimination 4-in-1 formula for weed, moss, feed, and lawn care Covers up to 280m² with just 10kg A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg

**Brand:** a1lawn
**Price:** € 91.93
**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?** € 91.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/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

- • **Effortless Lawn Revival:** Powerful 4-in-1 action saves you hours of weekend work
- • **Season-Long Green Boost:** Use from March to October for continuous lawn vitality
- • **Rapid Moss & Weed Control:** 8% iron plus triple active weed killers for fast, broad-spectrum results
- • **Maximum Coverage, Minimal Effort:** Low application rate treats large areas efficiently
- • **Professional-Grade Lawn Perfection:** DEFRA & FERA certified for trusted UK quality and compliance

## 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 for moss control, and three active weed killers. Covering up to 280m² per 10kg bag, it delivers rapid, broad-spectrum lawn care from early spring through autumn, trusted by UK gardeners since 2010.

## Description

A1 Lawn, Double Strength Feed, Weed & Moss Killer - 4-in-1 Lawn Treatment, High Iron, DEFRA Certified, 10kg : desertcart.co.uk: Garden

Review: A1 feed, weed and moss killer. - Quick prompt delivery. Slightly smaller granules than the A1 autumn/ winter feed so it watered in more easily. However, a few hours of heavy rain probably also speeded up the process!
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 | 3,009 in Garden ( See Top 100 in Garden ) 58 in Moss Control |
| Brand Name | A1Lawn |
| Coverage | 280 Square meters |
| Customer Reviews | 4.3 4.3 out of 5 stars (283) |
| Item Form | Granules |
| Mixing Ratio | 10-2-2 |
| Specific Uses For Product | Lawn Care |
| Target Species | Grass, Lawn |
| Unit Count | 10000 Grams |

## 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A1 feed, weed and moss killer.
*by E***S on 16 March 2026*

Quick prompt delivery. Slightly smaller granules than the A1 autumn/ winter feed so it watered in more easily. However, a few hours of heavy rain probably also speeded up the process!

### ⭐⭐⭐⭐ 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 !

### ⭐⭐⭐⭐⭐ Perfect
*by S***L on 2 August 2025*

Really amazing product- I was fed up with weeds and using this with lots of water and my garden is looking wonderful with no signs of weeds

## 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.hr/products/123063906-a1-lawn-double-strength-feed-weed-and-moss-killer-4](https://www.desertcart.hr/products/123063906-a1-lawn-double-strength-feed-weed-and-moss-killer-4)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-26*