{"product_id":"csn-pumice-2-5-litres-fine-grade","title":"CSN Pumice 2.5 Litres - Fine Grade","description":"\u003cp\u003eCSN Pumice 2.5 Litres is a highly porous volcanic growing medium amendment designed to improve aeration, water retention, and long-lasting structure. This natural soil amendment consists of durable, naturally calcined volcanic glass foam. Its porous character helps a growing medium retain moisture while preserving valuable air space around plant roots. The result is a practical mineral-based component suited to most growing mediums and soils.\u003c\/p\u003e\n\u003cp\u003eThe durable structure is resistant to compaction, helping the growing medium maintain its physical form as it settles over time. This long-lasting growing medium structure supports more consistent root-zone conditions by keeping moisture retention and optimal aeration for roots working together. The pumice can hold moisture within its porous surface while still contributing the open structure roots need for air movement. Its stability also helps reinforce the medium without quickly losing its form.\u003c\/p\u003e\n\u003cp\u003eCSN Pumice naturally provides plants with mineral nutrients as part of its volcanic mineral composition. It is certified organic. The product is described as free of heavy metals, pesticides, nanoparticles, and allergens. These qualities make it a straightforward growing medium ingredient for growers seeking a clean mineral amendment with durable physical performance. Its function remains focused on the foundation of the root zone: structure, moisture availability, aeration, and naturally supplied mineral nutrients.\u003c\/p\u003e\n\u003cp\u003eAs a soil amendment, this pumice is especially relevant when a growing medium needs better resistance to compaction or a more dependable balance between retained moisture and root aeration. Its highly porous form supports water retention without sacrificing the structural air spaces that contribute to optimal aeration for roots. The durable volcanic glass foam also helps the medium keep its shape, giving roots a more stable environment over time.\u003c\/p\u003e\n\u003cp\u003eThe combination of optimum aeration, water retention, long-lasting structure, and mineral nutrients gives CSN Pumice a clear role in plant-growing media. It supports the physical qualities of the root zone while remaining suitable for most growing mediums and soils. This product is a good fit for growers seeking a certified organic soil amendment focused on moisture management, root aeration, and durable growing medium structure.\u003c\/p\u003e\n\u003cp\u003eProduct benefits: Indoor; Outdoor; Flowering Stage; Vegetative Stage; Soilless; Better Aeration; Drainage Support; Moisture Retention; Breathable Root Zone; Reduced Compaction; Root Development; Nutrient Holding; Air-Water Balance.\u003c\/p\u003e\n\u003cp\u003eDerived from: Horticulture Pumice.\u003c\/p\u003e","brand":"Crystal Star Nursery","offers":[{"title":"Default Title","offer_id":47229538271388,"sku":null,"price":1.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/0300\/8412\/files\/CSNPumice2.5Litres.webp?v=1784304451","url":"https:\/\/provisiongardens.com\/products\/csn-pumice-2-5-litres-fine-grade","provider":"Provision Gardens","version":"1.0","type":"link"}