Pro-Kleen Iron Sulphate Lawn Conditioner – 2.5kg

Pro-Kleen's Iron Sulphate is the same professional-grade treatment used by groundskeepers on sports pitches and bowling greens, now available in a practical 2.5kg tub for home gardeners who want genuinely impressive results. Mixed with water at the recommended dilution rate, this single tub can treat up to 2,500 square metres, making it outstanding value whether you're maintaining a modest back lawn or managing a larger plot. The damp-grade formula dissolves readily, so there's no frustrating clumping when you're mixing up a batch.

What sets iron sulphate apart from standard lawn feeds is its three-pronged effect on your turf. It delivers a rich, deep green colour that becomes visible within just a few days, while simultaneously hardening the grass plant itself to improve wear resistance through the wetter months. It also gently lowers soil pH over time, which helps suppress moss and creates conditions where fine grasses thrive. If moss is a persistent problem, iron sulphate is one of the most reliable ways to tackle it without reaching for harsher chemicals.

This is a product that suits anyone who wants to take their lawn care up a level, from enthusiastic beginners to seasoned gardeners who already know the difference a good iron treatment makes. It works well as a standalone conditioner applied through the seasons, or as part of a wider lawn care programme alongside aeration and overseeding. Apply it through a garden sprayer or watering can and avoid walking on the lawn until it has been watered in, as the solution can temporarily stain hard surfaces and light-coloured footwear.