{"product_id":"mollys-pumice","title":"Molly's Pumice - Screened 8-12 mm Pumice for Custom Blends, Top Dressing and Specialty Plant Projects","description":"\u003c!-- VP-MC-PUMICE-TLDR-2026-10-23 --\u003e\n\u003cdiv class=\"vp-tldr\" style=\"background:#f7f4ec;border-left:4px solid #2f6b3a;padding:18px 22px;margin:0 0 24px;border-radius:6px;\"\u003e\n\u003cp style=\"margin:0 0 10px;font-weight:700;font-size:1.05em;\"\u003eQuick answer: what is Molly's Pumice?\u003c\/p\u003e\n\u003cul style=\"margin:0 0 0 18px;padding:0;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat it is:\u003c\/strong\u003e natural, lightweight porous volcanic rock, screened to 8 to 12 mm (3\/8 to 1\/2 in) and packed low dust.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e custom mixes for aroids, succulents, cacti and bonsai, plus propagation, top dressing and drainage layers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the bag:\u003c\/strong\u003e 100% pumice, 3 dry quarts (3.3 L), in a resealable stand-up bag. Fills about eight 4-inch pots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreened grade.\u003c\/strong\u003e Excess dust, powder and fines are screened out for a consistent particle size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA single component, not a potting mix.\u003c\/strong\u003e For a ready-to-use blend, choose one of Molly's potting mixes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/VP-MC-PUMICE-TLDR-2026-10-23 --\u003e\n\u003cp\u003ePumice is a natural, lightweight volcanic rock, formed when gas is trapped in cooling lava and leaves small holes behind. That porous structure holds moisture and releases it slowly to roots. Molly's Pumice is 100% natural, with no dyes, additives or fillers.\u003c\/p\u003e\n\u003cp\u003eUse Molly's Pumice to build a mix around what your plants need. It's screened to remove excess dust and to a consistent 3\/8 to 1\/2 inch (8 to 12 mm) size, which gives you more control over structure, drainage and aeration. With aroids and other tropicals it helps prevent compaction in a chunky mix; with succulents, cacti and bonsai it builds a gritty, fast-draining mix. Its bright white color also makes a clean top dressing against green foliage.\u003c\/p\u003e\n\u003ch3 style=\"margin-top:1.75rem;\"\u003eWhy growers choose it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent 3\/8 to 1\/2 inch (8 to 12 mm), low dust.\u003c\/strong\u003e Screened to remove excess dust, powder and fines, for a clearly stated coarse grade and a predictable particle size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood value.\u003c\/strong\u003e A 3 quart (3.3 L) bag fills about eight standard 4-inch pots. The resealable bag stands up, so it's easy to pour and store.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrainage and root airflow.\u003c\/strong\u003e Porous pumice adds lasting structure to potting mixes, creating drainage and air space around roots without compacting like fine soil-based media. It also works as a drainage layer in pots and terrariums.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor aroids, succulents, cacti and bonsai.\u003c\/strong\u003e Use with your potting mix or blend with other components for monstera, philodendron, alocasia, succulents, cacti and bonsai.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePropagation and top dressing.\u003c\/strong\u003e Root cuttings in pumice or in propagation boxes, or use it in hydroponic growing. As a top dressing it gives a finished look and helps keep potting mix in place.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin-top:1.75rem;\"\u003eHow to use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor custom mixes, blend it into your own mixes for aroids, succulents, cacti, bonsai and other plants that like a chunky or gritty mix.\u003c\/li\u003e\n\u003cli\u003eFor propagation, root cuttings in rinsed pumice and keep it lightly moist.\u003c\/li\u003e\n\u003cli\u003eFor top dressing, add a thin layer to the surface of the pot for a clean, finished look.\u003c\/li\u003e\n\u003cli\u003eRinse before use if you want to remove any remaining fine dust.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin-top:1.75rem;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: 100% pumice\u003c\/li\u003e\n\u003cli\u003eParticle size: 8 to 12 mm (3\/8 to 1\/2 in), screened\u003c\/li\u003e\n\u003cli\u003eBag size: 3 dry quarts (3.3 L), filled by volume\u003c\/li\u003e\n\u003cli\u003eCoverage: about eight standard 4-inch pots (varies with pot shape and use)\u003c\/li\u003e\n\u003cli\u003ePackaging: resealable stand-up bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"vp-system-note\" style=\"margin:2rem 0;padding:1.25rem;background:#F5F9F5;border-left:3px solid #2E7D32;border-radius:4px;\"\u003e\n\u003ch3 style=\"margin:0 0 .5rem;color:#2E7D32;font-size:1.1rem;\"\u003eWhere it fits with Molly's mixes\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#444;line-height:1.55;\"\u003eMolly's potting mixes are ready to use and already blended for air, moisture and drainage, so you don't need to add anything to them. Molly's soil-free components are single materials for growers who want more ways to grow, propagate and customize. For a complete mix, see \u003ca href=\"\/products\/mollys-aroid-mix-premium-tropical-plant-soil-mix\"\u003eMolly's Aroid Mix\u003c\/a\u003e, \u003ca href=\"\/products\/mollys-succulent-mix-premium-gritty-soil-mix\"\u003eMolly's Succulent Mix\u003c\/a\u003e or \u003ca href=\"\/products\/mollys-orchid-mix\"\u003eMolly's Orchid Mix\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- VP-MC-PUMICE-FAQ-2026-10-23 --\u003e\n\u003cdiv class=\"vp-faq\" style=\"margin:2.25rem 0;\"\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eWhat size is Molly's Pumice?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003eIt's screened to 3\/8 to 1\/2 inch (8 to 12 mm). Screening also removes excess dust, powder and fines for a more consistent size.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eHow is pumice different from perlite?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003eBoth are volcanic. Perlite is volcanic glass that is heated until it expands, which makes it very light. Pumice is a natural porous rock, so it is heavier and holds its shape.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eIs it dusty when I open it?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003eIt's screened before packing to remove excess dust, powder and fines. A little dust can settle at the bottom of the bag as the stones rub together in transit. Rinse before use if you want to remove it.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eWhat plants is it best for?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003eHouseplants, tropicals and aroids such as monstera, philodendron and alocasia, where it helps prevent compaction and builds a chunky, airy mix. It also suits succulents, cacti and bonsai, where it builds a gritty, fast-draining mix.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eHow much moisture does pumice hold?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003ePumice is porous, so it holds some moisture in its pores and releases it slowly. How much a mix holds depends on how much pumice you use.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eHow do I mix it with soil?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003ePut your chosen amounts of pumice and potting medium in a bucket at least twice the size of the finished volume, then mix with a trowel or your hands until the texture is even.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eCan I use it outdoors?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003eYes. Blend it into potting soil to help prevent compaction and add aeration and drainage, or use it as a drainage layer in outdoor planters, a top dressing for an outdoor succulent bowl, or a mulch with a contrasting white color. Pumice is heavier than perlite, so it's less likely to blow or float away.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eCan it be reused?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003eYes. Pumice is durable and long-lasting. Clean it thoroughly before you reuse it with a different plant.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eHow many pots does a bag fill?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003eAbout eight standard 4-inch pots. It varies with how you use it: top dressing, drainage layer or mixed in.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;margin:0 0 .6rem;\"\u003e\u003csummary style=\"font-weight:700;padding:14px 16px;cursor:pointer;list-style:none;font-size:16px;\"\u003eDo I need to add pumice to Molly's mixes?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;line-height:1.6;color:#333;\"\u003eNo. Molly's Aroid, Succulent and Orchid mixes are complete and ready to use. Pumice is for mixes you make yourself, propagation, top dressing and drainage layers.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n  {\n   \"@type\": \"Question\",\n   \"name\": \"What size is Molly's Pumice?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"It's screened to 3\/8 to 1\/2 inch (8 to 12 mm). Screening also removes excess dust, powder and fines for a more consistent size.\"\n   }\n  },\n  {\n   \"@type\": \"Question\",\n   \"name\": \"How is pumice different from perlite?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"Both are volcanic. Perlite is volcanic glass that is heated until it expands, which makes it very light. Pumice is a natural porous rock, so it is heavier and holds its shape.\"\n   }\n  },\n  {\n   \"@type\": \"Question\",\n   \"name\": \"Is it dusty when I open it?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"It's screened before packing to remove excess dust, powder and fines. A little dust can settle at the bottom of the bag as the stones rub together in transit. Rinse before use if you want to remove it.\"\n   }\n  },\n  {\n   \"@type\": \"Question\",\n   \"name\": \"What plants is it best for?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"Houseplants, tropicals and aroids such as monstera, philodendron and alocasia, where it helps prevent compaction and builds a chunky, airy mix. It also suits succulents, cacti and bonsai, where it builds a gritty, fast-draining mix.\"\n   }\n  },\n  {\n   \"@type\": \"Question\",\n   \"name\": \"How much moisture does pumice hold?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"Pumice is porous, so it holds some moisture in its pores and releases it slowly. How much a mix holds depends on how much pumice you use.\"\n   }\n  },\n  {\n   \"@type\": \"Question\",\n   \"name\": \"How do I mix it with soil?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"Put your chosen amounts of pumice and potting medium in a bucket at least twice the size of the finished volume, then mix with a trowel or your hands until the texture is even.\"\n   }\n  },\n  {\n   \"@type\": \"Question\",\n   \"name\": \"Can I use it outdoors?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"Yes. Blend it into potting soil to help prevent compaction and add aeration and drainage, or use it as a drainage layer in outdoor planters, a top dressing for an outdoor succulent bowl, or a mulch with a contrasting white color. Pumice is heavier than perlite, so it's less likely to blow or float away.\"\n   }\n  },\n  {\n   \"@type\": \"Question\",\n   \"name\": \"Can it be reused?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"Yes. Pumice is durable and long-lasting. Clean it thoroughly before you reuse it with a different plant.\"\n   }\n  },\n  {\n   \"@type\": \"Question\",\n   \"name\": \"How many pots does a bag fill?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"About eight standard 4-inch pots. It varies with how you use it: top dressing, drainage layer or mixed in.\"\n   }\n  },\n  {\n   \"@type\": \"Question\",\n   \"name\": \"Do I need to add pumice to Molly's mixes?\",\n   \"acceptedAnswer\": {\n    \"@type\": \"Answer\",\n    \"text\": \"No. Molly's Aroid, Succulent and Orchid mixes are complete and ready to use. Pumice is for mixes you make yourself, propagation, top dressing and drainage layers.\"\n   }\n  }\n ]\n}\n\u003c\/script\u003e\n\u003c!-- \/VP-MC-PUMICE-FAQ-2026-10-23 --\u003e\n\u003cp style=\"font-size:0.9rem;color:#555;margin-top:1.5rem;\"\u003e\u003cstrong\u003eCare and handling:\u003c\/strong\u003e Not for consumption. Keep out of reach of children and pets. Store dry.\u003c\/p\u003e\n\u003cp class=\"vp-p65\" style=\"font-size:0.9rem;color:#333;margin:1.5rem 0 0;\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals including crystalline silica, which is known to the State of California to cause cancer. For more information go to \u003ca href=\"https:\/\/www.P65Warnings.ca.gov\" rel=\"noopener\" target=\"_blank\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"Veryplants","offers":[{"title":"3 Quart (3.3 L)","offer_id":68046794588311,"sku":"MC-PUMICE-6-9MM-3DQ-US","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/4026\/6992\/files\/mollys-pumice-01-front.jpg?v=1792707802","url":"https:\/\/veryplants.com\/products\/mollys-pumice","provider":"VERYPLANTS US LLC","version":"1.0","type":"link"}