Autumn Lawn Builder Fertiliser

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iGrow Carpet Autumn Lawn Builder 12-4-12 + 4% MgO + 2% CaO A slow-release autumn fertiliser that thickens your grass, repairs summer wear and tear, and keeps your lawn green and he althy as the days shorten. Iron free, so no orange staining on paths or drives. Safe for kids and pets when used as directed. The science bit The partial coating on this fertiliser pauses nutrient release as soil temperatures cool. Unlike cheaper products that unload everything at once, your lawn gets a steady supply without the late-season growth spurts that invite disease. Nitrogen (12% N) Encourages fresh growth, helps grass thicken up and repairs the damage summer leaves behind. Phosphorus (4% P) Supports strong root development, improving your lawn's ability to find water and nutrients. Sets up a healthy foundation going into the colder months. Potassium (12% K) Strengthens the lawn against stress. Colder nights, foot traffic and disease pressure. Keeps your grass resilient when conditions get tougher. Magnesium (4% MgO) Fuels chlorophyll production, giving you a deeper, richer shade of green without the staining you get from cheaper iron-based products. Calcium (2% CaO) Improves root strength and soil structure, making it easier for grass to push down deep, strong roots. Show more