
Hobby products Plant care and protection Universal Slow-Release Fertiliser
Granular NPK Multi 15-6-15 slow-release fertiliser for stronger, more resilient plants — lasts 3–4 months.
Leader Universal Slow-Release Fertiliser 4 KG is a granular compound mineral NPK (Mg-S) Multi 15-6-15 slow-release fertiliser. It suits vegetables, flowers, fruit, roses, lawns, and hedges. It releases nutrients progressively over 3–4 months, supplying nitrogen, phosphorus, potassium, magnesium, and sulfur. Granular format, 4 KG pack.
Features
Leader Universal Slow-Release Fertiliser 4 KG is a granular compound mineral slow-release fertiliser with NPK Multi 15-6-15 (Mg-S) formula. The formula has a low chlorine content. It provides progressive nutrition for 3–4 months. Nitrogen releases gradually to support repeated growth flushes and flowering. This promotes balanced development, abundant flower production, and large, well-coloured fruit.
Continuous nitrogen uptake throughout the plant growth cycle helps prevent fruit drop and cracking. Magnesium and sulfur improve photosynthesis, vigorous foliage appearance, flower colour, and the flavour of harvested fruit.
Indicative rates: 400–600 g per 10 m² of surface area. Fruit trees: 40–80 g per plant. Vegetables: 50–60 g/m². Flowers: 50–70 g/m². Roses: 40–60 g/m². Lawn: 30–40 g/m². Hedges: 15–20 g/m². For ornamental containers: spread the product a few centimetres from the plant base and incorporate it lightly into the growing medium, adjusting the dose according to pot size. Suitable for vegetable gardens, flowers, fruit trees, roses, lawns, and hedges. Granular format, 4 KG pack — a professional size for large growing areas or where long-lasting nutrition of 3–4 months is needed.
Why choose it
- NPK 15-6-15 (Mg-S) slow-release: consistent supply for 3–4 months from a single application.
- Low chlorine content: safe for sensitive plants and supports stronger, more resilient growth.
- Staggered nitrogen release: helps prevent fruit drop and cracking, and supports repeated growth flushes.
- Magnesium and sulfur: improve photosynthesis, flower colour, and fruit flavour.
- Universal use: vegetables, flowers, fruit trees, roses, lawns, hedges. Granular format, 4 KG pack.
How to use it
- Spread the granules evenly over the surface to be fertilised.
- For open-ground growing: apply 400–600 g per 10 m² of surface area.
- For ornamental containers: spread a few centimetres from the plant base and adjust the dose according to pot size.
- Incorporate lightly into the soil and water thoroughly.
- A single application provides 3–4 months of nutrition thanks to the slow-release action.





