SKU: 63451913895
sand for potted plants

sand for potted plants Black lava sand, coarse-grain horticultural grit – Pretty Ugly Things

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Description

sand for potted plants Black lava sand, coarse-grain horticultural grit – Pretty Ugly ThingsSIZE 1 8" avg grains, 1 4 inch down to fines (silt) Units: 3 4, 1. 5, 5, or 15 lb The sand has been washed and sorted to remove foreign materials and any obvious light colored chunks. This material is mined in northern Arizona, and characteristic of the region's material I have found some tiny bits of peridotite olivine mixed in! Black lava sand is finely crumbled volcanic rock. It is a key component of DIY Pon mixes for succulents, cacti, aroids like

SIZE 1/8" avg grains, 1/4 inch down to fines (silt)
Units: 3/4, 1.5, 5, or 15 lb

The sand has been washed and sorted to remove foreign materials and any obvious light-colored chunks. This material is mined in northern Arizona, and characteristic of the region's material I have found some tiny bits of peridotite/olivine mixed in!

Black lava sand is finely crumbled volcanic rock. It is a key component of DIY Pon mixes for succulents, cacti, aroids like hoya and philodendrons, bonsai, and carnivorous plants. The fine gravel can also be used in terrariums and fairy gardens. It is a decorative lightweight top-dressing that helps hold moisture in soil. Alternatively, mix it into the soil like perlite for a lightweight grit.

There are many cacti and succulents that are happy to be planted directly in lava sand or lava rock mixed with other rock types to create an inorganic soil—it more closely mimics low-nutrient natural growing conditions. The porosity of volcanic rock keeps it lightweight, so roots stay airy and dry. At the same time the porosity retains moisture well similar to LECA, so lava rock soils drain immediately but light moisture remains available to the plant. This makes it much more difficult to lose a plant to the soggy conditions that cause root rot. (And dissuades fungus gnats!)

How much do I need? If you aim to use this as a potting medium, a 2.5" square pot holds about 4.75oz, and a 4" round pot takes about 15 oz.

3/4 lb - best for one or two plants, fairy gardens, testing out the substrate.
1.5 lb - best for small plant collections, mixing with other substrates, terrariums.
5 lb - best for more advanced gardeners and larger projects.

🌟 15 lb BULK size now available!

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SKU: 63451913895

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jim hughes
Carnegie, US
★★★★★ 5
It actually does the job pretty well
Style: Lawn Edger/Tool Only
I floundered around for a few minutes, then figured out how to use it, and then made pretty good progress on my overgrown sidewalks. Yes, it uses up batteries but that's because it actually has enough power to do the job, unlike many "homeowner" tools. The handle is long enough so I'm not painfully bent over while using the tool, and it feels solid and stable. One thing I really appreciated is that it doesn't have a typical pointless, awkward "safety" interlock button that you're supposed to keep mashed down with your thumb the whole time - it's a comfortable one-finger trigger. Another good 20v tool from Worx. I'm "in".
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Reviewed in the United States on June 10, 2024
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Verified Purchase
Kent Steiner
Chelsea, US
★★★★★ 5
Quit spinning
Style: Lawn Edger/Tool Only
Worked great until it guilt working.
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Reviewed in the United States on November 14, 2025
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Mimi
New York, US
★★★★★ 4
Works great!
Style: Lawn Edger/Tool Only
Works great and uses the same batteries that we already had from other works equipment. I do wish the pole was longer.
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Reviewed in the United States on February 21, 2026
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Tom Ware
Omaha, US
★★★★★ 5
Good value if you have work batteries.
Style: Lawn Edger/Tool Only
Works well for sidewalk edging. Auto shutoff if the blade hits sidewalk or rock.
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Reviewed in the United States on May 28, 2026
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Corinne Creswick
Houston, US
★★★★★ 1
Disappointed
Style: Lawn Edger/Tool Only
This Worx product does not work as well as I hoped, I have many Worx products, but this one I wish I didn’t order.
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Reviewed in the United States on May 20, 2026

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