{"product_id":"pumice-3-8mm-horticultural-grade","title":"Pumice 3-8mm Horticultural Grade","description":"\u003cp\u003e\u003cspan\u003ePumice is a lightweight, porous volcanic rock that makes an excellent horticultural soil component because it improves drainage and aeration while still helping the root zone hold a balanced amount of moisture. Its rigid, irregular particles create long-lasting air pockets that reduce compaction, allowing roots to breathe and lowering the risk of waterlogging and root rot, especially in containers and heavier mixes. Unlike many organic amendments, pumice doesn’t break down quickly, so it keeps the structure of a potting mix stable over time and maintains consistent performance across repeated watering cycles. Because it’s inert and typically pH-neutral to slightly alkaline depending on the source, it’s a reliable way to “open up” mixes for houseplants, succulents, aroids, and other plants that thrive in a free-draining, oxygen-rich substrate.\u003c\/span\u003e\u003c\/p\u003e","brand":"Gardenware","offers":[{"title":"1L","offer_id":57516972540249,"sku":null,"price":8.99,"currency_code":"GBP","in_stock":true},{"title":"2L","offer_id":57516972573017,"sku":null,"price":12.99,"currency_code":"GBP","in_stock":true},{"title":"3L","offer_id":57516972605785,"sku":null,"price":14.99,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":57516972638553,"sku":null,"price":16.99,"currency_code":"GBP","in_stock":true},{"title":"10L","offer_id":57516972671321,"sku":null,"price":29.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1027\/6749\/3465\/files\/packify-w33NCsC1tx7frPE.jpg?v=1773152270","url":"https:\/\/www.gardenware.co.uk\/products\/pumice-3-8mm-horticultural-grade","provider":"Gardenware","version":"1.0","type":"link"}