---
product_id: 311708417
title: "2lb Red Horticultural Lava Rock Soil Additive for Cacti, Vase Fillers, Succulents and Terrarium Plants - No Dyes or Chemicals - 100% Pure Volcanic Rock"
brand: "boniosz"
price: "$70"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/311708417-2lb-red-horticultural-lava-rock-soil-additive-for-cacti-vase
store_origin: NZ
region: New Zealand
---

# 100% pure volcanic rock optimal moisture retention & drainage chemical & dye free, eco-friendly 2lb Red Horticultural Lava Rock Soil Additive for Cacti, Vase Fillers, Succulents and Terrarium Plants - No Dyes or Chemicals - 100% Pure Volcanic Rock

**Brand:** boniosz
**Price:** $70
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 2lb Red 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?** $70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/311708417-2lb-red-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

- • **Versatile for Multiple Uses:** From cacti to aquariums, fire pits to terrariums—one rock, endless possibilities.
- • **Boost Plant Health Naturally:** Porous texture ensures quick drainage while locking in essential moisture.
- • **Eco-Friendly & Chemical-Free:** 100% pure volcanic rock with zero dyes or additives for a clean, natural grow.
- • **pH Balancer for Aquatic Life:** Stabilizes water pH to create a safer, healthier environment for freshwater tanks.
- • **Perfectly Sized for Instant Use:** Sifted and sieved to pot-ready granules—no prep needed.

## Overview

This 2lb pack of red horticultural lava rock offers perfectly sized, 100% pure volcanic stones designed to enhance soil aeration and moisture retention for succulents, cacti, and terrarium plants. Free from dyes and chemicals, it doubles as a natural pH stabilizer for aquariums and a versatile medium for various gardening and DIY projects.

## Description

Full description not available

## Features

- 【Great Size】Red Lava Rock is sifted and sieved for a perfect 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
- **Item Weight:** 2.4 Pounds
- **Item Volume:** 1 Quarts
- **Style:** drainage-optimized, rock-based

## Images

![2lb Red 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/81OhgsJTmZS.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good size for plants
*by P***M on April 27, 2025*

It looks nice but I haven’t used it yet. It should be just perfect in plant use.

### ⭐⭐⭐⭐⭐ Perfect for Lithops and adds to decor.
*by 0***2 on April 5, 2025*

Love this for my succulents. I got the multi colored and the colors are great. I have already gotten a second bag!

### ⭐⭐⭐⭐⭐ Best mix I've found
*by M***N on April 7, 2024*

These are the soil amendments I would choose separately all in one at a good price . Work wonderful with my hawothias and cactus, sometimes I add a small amount of potting mix or chunky coco coir , depending on how dry your plants like it. I was a chronic over- waterer and lost a lot of very pretty succulents before I got the hang of the gritty mix. The diamotide is great if you have issues with fungus gnats, I usually add D. E. powder to help but this mix has it all and is a lot cheaper than akadama. Always use pots with drainage holes no matter what you plant them in, even if it's just rocky mixes like these - if you have succulents or cacti. The water should be able to run out , and you can sit them in trays to water from the bottom to form strong roots . You can add bark fines or chunky coir to pull the water up and through the roots. Really a very helpful mix !!

## Frequently Bought Together

- Boniosz 2.4lb Red Horticultural Lava Rock Soil Additive for Cacti, Vase Fillers, Succulents and Terrarium Plants - No Dyes or Chemicals - 100% Pure Volcanic Rock
- Pumice for Bonsai, Succulent, Cactus | 2 Quarts Bag | 1/4” Particle Size | The Bonsai Supply

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**Shop now:** [https://www.desertcart.nz/products/311708417-2lb-red-horticultural-lava-rock-soil-additive-for-cacti-vase](https://www.desertcart.nz/products/311708417-2lb-red-horticultural-lava-rock-soil-additive-for-cacti-vase)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-01*