Small Black Lava Rock
Quick answer
Small Black Lava Rock should be chosen by water retention, drainage, container size, crop stage, and how often you want to irrigate.
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Description
Ever noticed how perlite seems to float to the top of your containers, leaving your soil uneven and your plants struggling? It can be frustrating watching your soil shift instead of staying exactly where you want it. 🌱
That's where our Small Black Lava Rock steps in. Screened to 3/8" minus and packed with natural lava rock powder, this mineral-rich alternative stays put, supports soil structure, and even feeds your plants over time. It's everything you wish perlite could be and more.
*Note: Due to our build process and the proximity of our black lava rock and pumice piles, a small amount of white pumice may be present. This does not affect planting use, but for landscaping please be aware it may slightly change the uniform black appearance.
Why Growers Love It
Stays In Place
No more floating perlite. This lava rock holds steady, keeping your soil layers consistent from start to finish.
Boosts Soil Health
The natural lava rock powder delivers a slow, steady release of minerals that enrich your soil and support thriving plants. 🌋
Lasts Longer
Unlike perlite that can break down and lose effectiveness, this black lava rock stands the test of time in your containers or raised beds. 💪
Perfect Size
Screened to 3/8" minus, these small to medium pieces look similar to perlite but perform even better and the "minus" means that the smaller particles like sand aren't screened out and this makes an excellent rock dust source for living soil and garden beds.
Notice To Bonsai Growers
You will want to screen out the perfect size pieces for your use and save the sand particles for your garden or potentially use for bonsai species that require more moisture holding like tropical bonsai.
Natural and Pure
Nothing added. Just beautiful black lava rock straight from nature to your soil. 🖤
Instructions for Use
Mixing Into Soil
Add 10% to 30% lava rock by volume into your potting mix for best results. Adjust based on your plant’s drainage needs.
Topdressing
Spread a thin layer over the surface of your soil to help with moisture retention and improve the look of your containers.
Reuse
When replanting, simply rinse and reuse. This lava rock holds up season after season!
- BuildASoil Shipping: Our complimentary shipping method for qualifying orders. We choose the most cost-effective carrier and shipping method. Delivery may take up to 10 business days. Most items qualify when you purchase two or more eligible products. Some qualify individually.
- Standard Shipping: A paid option where we ship using standard ground services.
- Standard Shipping: Rushed Out the Door! Includes everything in Standard Shipping, but adds on same day order processing (not guaranteed).
- Get It Fast: Our expedited service. Orders are shipped with 2-3 day transit times and are prioritized for fulfillment, with most leaving the same business day (not guaranteed).
- Overnight It: Ships via overnight service with immediate fulfillment for urgent deliveries.
- FedEx Freight (Economy or Priority): For large or heavy orders. All freight ships via FedEx Freight unless arranged otherwise. Contact us in advance if no liftgate is required.