Crop Builder Sulphate of Potash (Potassium Sulphate)

Crop Builder Sulphate of Potash (Potassium Sulphate)

Crop Builder Sulphate of Potash is a premium, fast-acting source of potassium (K), essential for flower, fruit, and root development. With a concentrated NPK ratio of 0-0-48, it encourages stronger stems, improved fruit quality, and greater resistance to disease and drought. Perfect for use on flowering plants, fruiting vegetables, root crops, and lawns where an extra potassium boost is needed.

This high-quality fertiliser supports plants in producing more abundant flowers and sweeter, firmer fruit. It also helps toughen plant cell walls, enhancing resilience against pests and environmental stress. Because it’s chloride-free, it’s safe for sensitive crops such as tomatoes, strawberries, and potatoes.

Application rate: Apply evenly at 30–50g per m² before sowing or planting, lightly raking into the topsoil. For established plants, apply every 4–6 weeks during the growing season as a top dressing. Water in thoroughly after application to activate nutrients.

Suitable for use in greenhouses, vegetable beds, flower borders, and containers. Ideal for gardeners wanting to enhance flowering, fruiting, and overall plant strength throughout the season.

Common Questions

When should I use Crop Builder Sulphate of Potash? Use from spring to late summer, particularly before and during flowering or fruiting to boost performance and yield.

What plants benefit most from Potash? Fruit trees, tomatoes, peppers, potatoes, and flowering plants all thrive with extra potassium for stronger growth and improved fruit quality.

Is it safe for all plants? Yes. It’s chloride-free, making it suitable for even sensitive crops and ornamental plants.

Can it be mixed with other fertilisers? It can be used alongside other Crop Builder products such as Growmore or Fish, Blood & Bone for balanced nutrition.