---
product_id: 562515168
title: "5lb Black Horticultural Lava Rock Soil Additive for Cacti, Vase Fillers, Succulents and Terrarium Plants - No Dyes or Chemicals - 100% Pure Volcanic Rock"
brand: "boniosz"
price: "VT22238"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/562515168-5lb-black-horticultural-lava-rock-soil-additive-for-cacti-vase
store_origin: VU
region: Vanuatu
---

# mineral-rich soil additive porous for ideal drainage 5lb pure volcanic rock 5lb Black Horticultural Lava Rock Soil Additive for Cacti, Vase Fillers, Succulents and Terrarium Plants - No Dyes or Chemicals - 100% Pure Volcanic Rock

**Brand:** boniosz
**Price:** VT22238
**Availability:** ✅ In Stock

## Summary

> 🌋 Elevate your plant game with pure volcanic power!

## Quick Answers

- **What is this?** 5lb Black Horticultural Lava Rock Soil Additive for Cacti, Vase Fillers, Succulents and Terrarium Plants - No Dyes or Chemicals - 100% Pure Volcanic Rock by boniosz
- **How much does it cost?** VT22238 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/562515168-5lb-black-horticultural-lava-rock-soil-additive-for-cacti-vase)

## Best For

- boniosz enthusiasts

## Why This Product

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

## Key Features

- • **Natural pH Balancer:** Stabilizes water acidity for thriving aquatic and hydroponic environments.
- • **Chemical-Free Purity:** 100% natural volcanic rock with zero dyes or additives for healthy plant growth.
- • **Perfect Particle Size:** Sifted & sieved for immediate potting use—no prep needed.
- • **Versatile Application:** From cacti to aquariums, fire pits to terrariums—one rock, endless possibilities.
- • **Optimized Moisture Control:** Porous structure ensures quick drainage while retaining essential moisture.

## Overview

This 5lb bag of black horticultural lava rock offers perfectly sized, chemical-free volcanic stones designed to enhance soil aeration and moisture retention. Ideal for succulents, cacti, bonsai, and terrariums, it also doubles as a natural pH stabilizer for aquariums and hydroponics, making it a versatile must-have for modern plant enthusiasts.

## Description

Full description not available

## Features

- 【Great Size】Black Lava Rock is sifted and sieved for a perfect particle size that is ready for direct potting use.Usually it is used as a soil additive or top dressing in the art of bonsai.
- 【Easy to Maintain】Replacing existing mulch with porous lava rocks to maintain plants like succulents, orchids, cacti, and bonsai trees ensures quick drainage while maintaining a little water.and provides mineral supplements.
- 【Ideal Drainage】The porosity of lava rocks allows for good drainage while maintaining moderate moisture within soil to allow your newly potted, acid-loving plants to grow beautifully.
- 【Widely Use】The temperature tolerance and quality of Boniosz red lava rocks make it useful for filling aquariums, ashtrays, fire media, garden soil amendment, fire pits,DIY projects, potting soil mediums, in addition to great top dressing for plants.
- 【Lava Rock for Aquarium – Natural pH Stabilizer & Water Purifier】Volcanic stone helps soften alkaline water and stabilize acidic conditions, bringing water closer to neutral pH for a safer aquatic environment. Ideal for freshwater tanks, shrimp tanks, betta fish tanks, terrariums, and hydroponics.

## Product Details

- **Brand:** Boniosz
- **Style:** Drainage-focused, mineral-rich
- **Item Weight:** 2.29 Kilograms

## Images

![5lb Black Horticultural Lava Rock Soil Additive for Cacti, Vase Fillers, Succulents and Terrarium Plants - No Dyes or Chemicals - 100% Pure Volcanic Rock - Image 1](https://m.media-amazon.com/images/I/81ksJ67DImS.jpg)

## Available Options

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

## Frequently Bought Together

- Boniosz 5lb Black Horticultural Lava Rock Soil Additive for Cacti, Vase Fillers, Succulents and Terrarium Plants - No Dyes or Chemicals - 100% Pure Volcanic Rock
- The Grow Co Succulents & Cactus Plant Food - Gentle Long Lasting Formula, Slow Release Fertilizer (Liquid Alternative) for All Potted Succulent, Cacti & Aloe Vera Plants (5 oz)

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**Shop now:** [https://www.desertcart.vu/products/562515168-5lb-black-horticultural-lava-rock-soil-additive-for-cacti-vase](https://www.desertcart.vu/products/562515168-5lb-black-horticultural-lava-rock-soil-additive-for-cacti-vase)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-03*