Pumice is a volcanic rock that is very porous which allows moisture to be absorbed while also remaining very light and airy. Pumice works very well to add aeration and drainage into potting mediums or soil as an additive. B Grade - contains small amounts of organic wood debris as pictured. Suitable for most plants. Extremely well-draining and provides aeration. Natural Volcanic Product 2-5mm Grade Size 3 or 5 Litre Bag Pumice has many uses, but it is particularly loved by Cacti, Succulent and Bonsai growers. NOTES: Please rinse Pumice with water before first use to remove any dust that has formed during shipping and transport. Our Pumice is sold by volume and is measured at the time of packing, some settling of contents may occur during shipping. Specifications Volcanic Pumice, Horticultural Grade, Natural2-5mm Grade SizeB Grade Our Packaging Our Pumice is hand packed by The Plant Boys and we use only recyclable and compostable packaging materials which are sustainably produced.
