---
product_id: 497307887
title: "18lb Black Lava Rock for Plant, 1/8-1/4 inch Horticultural Volcanic Rock Soil for Decorative Landscaping Bonsai, Cacti, Succulents Plants Top Dressing for Release Excess Water"
brand: "anothera"
price: "VT42616"
currency: VUV
in_stock: true
reviews_count: 10
category: "Anothera"
url: https://www.desertcart.vu/products/497307887-18lb-black-lava-rock-for-plant-1-8-1-4
store_origin: VU
region: Vanuatu
---

# 100% natural volcanic origin porous for ideal water drainage precise 18lb weight, perfect size 1/8-1/4 inch 18lb Black Lava Rock for Plant, 1/8-1/4 inch Horticultural Volcanic Rock Soil for Decorative Landscaping Bonsai, Cacti, Succulents Plants Top Dressing for Release Excess Water

**Brand:** anothera
**Price:** VT42616
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your plant game with nature’s volcanic power!

## Quick Answers

- **What is this?** 18lb Black Lava Rock for Plant, 1/8-1/4 inch Horticultural Volcanic Rock Soil for Decorative Landscaping Bonsai, Cacti, Succulents Plants Top Dressing for Release Excess Water by anothera
- **How much does it cost?** VT42616 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/497307887-18lb-black-lava-rock-for-plant-1-8-1-4)

## Best For

- anothera enthusiasts

## Why This Product

- Trusted anothera brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Heat Resistant:** 100% natural, chemical-free volcanic rock that withstands heat and lasts season after season.
- • **Optimal Moisture Control:** Porous lava rocks absorb and slowly release water, preventing root rot and overwatering.
- • **Mineral-Rich Growth Boost:** Trace minerals naturally nourish your plants for stronger, healthier growth.
- • **Multi-Purpose Garden Essential:** Use for soil amendment, aquarium substrate, fire pits, and stylish landscaping accents.
- • **Perfectly Sized for Versatility:** Small 1/8-1/4 inch stones ideal for bonsai, succulents, aquariums, and decorative top dressing.

## Overview

This 18lb bag of black lava rock features small, 1/8 to 1/4 inch porous stones that provide superior drainage and mineral supplementation for plants. Perfect for succulents, bonsai, aquariums, and garden decor, these durable, heat-resistant volcanic rocks enhance soil health while preventing root rot. Chemical-free and naturally colored, they offer versatile use from top dressing to landscaping, making them a must-have for any modern plant enthusiast.

## Description

desertcart.com : 18lb Black Lava Rock for Plant, 1/8-1/4 inch Horticultural Volcanic Rock Soil for Decorative Landscaping Bonsai, Cacti, Succulents Plants Top Dressing for Release Excess Water : Patio, Lawn & Garden

Review: Aquarium Substrated Base Mixture - Worked Well For Needs - I am pleased with the product, as it serves as part of the bottom-level substrate mix for my smaller planted aquariums, which are capped with sand (~10 gallons). It is as pictured and of the volume noted. The black 5lb bag was ideal (a tall 10-gallon vase and a tall 10-gallon rectangle). Given the cost and size of individual pieces, I would probably not use the 5-lb bag in a larger aquarium, but would purchase a large amount. NOTE: I would definitely rinse the lava rock thoroughly before using it in an aquarium to remove dust.
Review: Nice size rocks - Gives my succulents a mulch and contrast helps their appearance

## Features

- 🌻NATURAL LAVA ROCKS: Lava rocks contain trace minerals that plants need to grow and help them grow strong. Lava rocks are 100% natural, extremely heat resistant, and highly durable.
- 🌵IDEAL DRAINAGE: Lava rocks for plants are porous and will absorb and slowly release excess water back to the plant, which is perfect for preventing root rot.
- 🌿SMALL SIZE: The black lava rocks measure 1/8 to 1/4 inches and weigh a total of 18 pounds. It is ideal for mini potted plants and aquarium decor. The lava rocks for plants are natural and free of chemical additives, with a natural color that does not fade.
- 🌱EASY TO MAINTAIN: The color shows different shades between dry and wet crushed lava rock, ensuring quick drainage while maintaining some moisture and providing mineral supplements.
- 🌺WIDELY USED: Volcanic rock can be used for filling aquariums, ashtrays, garden soil amendments, fire pits, DIY projects, potting soil mediums; in addition to being great top dressing for plants. It is also suitable for garden landscaping decoration, potted plants, aquariums, ponds etc. Please keep the rocks dry if used in fire pits or fireplaces.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BKRRGP6D |
| Best Sellers Rank | #11,977 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #179 in Garden Soil |
| Brand Name | Anothera |
| Customer Reviews | 4.6 4.6 out of 5 stars (432) |
| Item Weight | 18 Pounds |
| Manufacturer | Anothera |
| Style Name | Modern |
| Unit Count | 288.0 Fluid Ounces |
| Volume | 288 Fluid Ounces |

## Product Details

- **Brand:** Anothera
- **Item Weight:** 18 Pounds
- **Style:** Modern

## Images

![18lb Black Lava Rock for Plant, 1/8-1/4 inch Horticultural Volcanic Rock Soil for Decorative Landscaping Bonsai, Cacti, Succulents Plants Top Dressing for Release Excess Water - Image 1](https://m.media-amazon.com/images/I/91vMHBTUdjL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Aquarium Substrated Base Mixture - Worked Well For Needs
*by T***R on September 1, 2025*

I am pleased with the product, as it serves as part of the bottom-level substrate mix for my smaller planted aquariums, which are capped with sand (~10 gallons). It is as pictured and of the volume noted. The black 5lb bag was ideal (a tall 10-gallon vase and a tall 10-gallon rectangle). Given the cost and size of individual pieces, I would probably not use the 5-lb bag in a larger aquarium, but would purchase a large amount. NOTE: I would definitely rinse the lava rock thoroughly before using it in an aquarium to remove dust.

### ⭐⭐⭐⭐⭐ Nice size rocks
*by Z***A on March 18, 2026*

Gives my succulents a mulch and contrast helps their appearance

### ⭐⭐⭐⭐⭐ Looks awesome
*by A***S on September 7, 2025*

Perfect for those plants that don’t need as much water. Color is perfect black. Low dust content. Great value for the money.

## Frequently Bought Together

- 18lb Black Lava Rock for Plant, Horticultural Volcanic Rock Soil for Decorative Landscaping Bonsai, Cacti, Succulents Plants Top Dressing for Release Excess Water
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**Shop now:** [https://www.desertcart.vu/products/497307887-18lb-black-lava-rock-for-plant-1-8-1-4](https://www.desertcart.vu/products/497307887-18lb-black-lava-rock-for-plant-1-8-1-4)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-04*