A1 Lawn Double Strength Grass Feed, Weed & Moss Killer – 10kg

This all-in-one granular treatment from A1 Lawn tackles four common lawn problems in a single application — feeding the grass, killing weeds, greening up the turf, and dealing with moss. The NPK ratio of 10-2-2 means it's heavily weighted towards nitrogen, which drives that deep, leafy green growth most gardeners are after, while phosphorus supports healthy root development and potassium builds resilience against wear and adverse weather. The high iron content works hard on moss and makes it a useful companion product if you're planning to scarify.

On the weed control side, three active ingredients — Dicamba, 2,4-D, and Mecoprop-P — give it a broad reach across common lawn weeds, and added sulfur trioxide and calcium oxide help bring soil pH into a range that discourages weeds from returning. The homogeneous granules mean every particle carries the same formulation, so you get consistent results across the whole lawn rather than patchy feeding. At double strength, the 10kg bag covers a generous 280 square metres, making it good value for larger gardens.

Produced in the UK and certified by DEFRA, FERA, and SASA, it's formulated specifically for the British climate and can be used from March through to October — spring, summer, and autumn alike. Application is straightforward with no mixing required; simply spread the granules and either water them in or apply ahead of expected rain. It suits anyone who wants a professional-grade result without the complexity of managing separate feed, weed, and moss products.