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Vitax Perlite is a natural volcanic rock that is heated to produce micro-porous, lightweight granules. These granules retain water and nutrients when added to compost, creating a healthier growing media for all your plants, flowers and shrubs.
When mixed with soil it holds water and nutrients near to the plants roots, great when potting on and planting out, stimulating root development. You can also use vermiculite alone when germinating seeds to maintain moisture and temperature.
The bright white Perlite also protects against harsh sunlight and radiant energy and reflects light back under a plants leaves and foliage encouraging growth and development.