{"product_id":"planterhoma-18-lb-horticultural-lava-rocks-5-8-mm-for-plants-drainage-decor","title":"Planterhoma 18 lb Horticultural Lava Rocks – 5-8 mm for Plants, Drainage \u0026 Decor","description":"\u003ch2\u003eProduct overview\u003c\/h2\u003e\n\u003cp\u003ePlanterhoma's 18-pound mix of horticultural lava rocks delivers a natural, porous substrate that supports drainage, airflow, and root health in containers, terrariums, and decorative setups. Each 5–8 mm piece offers a subtle mix of color and texture to enhance your plant space.\u003c\/p\u003e\n\n\u003ch3\u003eWhy gardeners reach for lava rocks\u003c\/h3\u003e\n\u003cp\u003eThe porous structure creates air spaces in soil, helping moisture move through the root zone and reducing soil compaction over time. This durable substrate resists breakdown like organic mulches, making it a long-lasting addition to pots and beds.\u003c\/p\u003e\n\n\u003ch3\u003eVersatile uses\u003c\/h3\u003e\n\u003cp\u003eThe rocks come ready to use after a light rinse. They can be blended into potting mixes, layered as a top-dressing, or used as decorative accents in glass containers, terrariums, or fairy garden setups.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eImprove drainage and aeration in pots and planters\u003c\/li\u003e\n  \u003cli\u003eDecorate terrariums, fairy gardens, and display bowls\u003c\/li\u003e\n  \u003cli\u003eSupport succulents, cacti, bonsai, and hydroponic projects\u003c\/li\u003e\n  \u003cli\u003eServe as durable top dressing or decorative filler\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLong-lasting and easy to handle\u003c\/h3\u003e\n\u003cp\u003eUnlike organic mulch, Planterhoma lava rocks do not degrade with time. They stay visually appealing and maintain soil structure after repeated watering, harvesting, or seasonal changes.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReady to use straight from the bag, with optional rinse\u003c\/li\u003e\n  \u003cli\u003eNo complex preparation required\u003c\/li\u003e\n  \u003cli\u003eColorful, natural look enhances plant displays\u003c\/li\u003e\n  \u003cli\u003eDurable, low-maintenance substrate for indoor and outdoor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCreative ideas for DIY projects\u003c\/h3\u003e\n\u003cp\u003eUse these rocks to craft eye-catching planters, terrarium accents, or vase fillers. They pair well with succulents, glass containers, and bonsai, offering texture and contrast for finished arrangements.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are Planterhoma lava rocks used for in planters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They improve drainage and aeration, helping soil stay ventilated and reducing compaction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these lava rocks safe for indoor use and decoration?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they are inert and stable, making them suitable for pots, terrariums, and decorative displays.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Planterhoma","offers":[{"title":"Default Title","offer_id":45791074746554,"sku":"B0D1P2S5T3","price":124.05,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/planterhoma-18lb-lava-rocks-bag-closeup.jpg?v=1776716188","url":"https:\/\/gardencanada.ca\/products\/planterhoma-18-lb-horticultural-lava-rocks-5-8-mm-for-plants-drainage-decor","provider":"Garden Canada","version":"1.0","type":"link"}