---
product_id: 555046803
title: "Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4\" Size) (Mined in USA) (5-lb Bag)"
brand: "midwest hearth"
price: "€ 41.41"
currency: EUR
in_stock: true
reviews_count: 8
category: "Midwest Hearth"
url: https://www.desertcart.ie/products/555046803-black-lava-rocks-for-plants-natural-horticultural-volcanic-rock-1
store_origin: IE
region: Ireland
---

# 100% natural volcanic origin Porous for optimal water retention Consistent 1/4-inch size for precision Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag)

**Brand:** midwest hearth
**Price:** € 41.41
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag) by midwest hearth
- **How much does it cost?** € 41.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/555046803-black-lava-rocks-for-plants-natural-horticultural-volcanic-rock-1)

## Best For

- midwest hearth enthusiasts

## Why This Product

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

## Key Features

- • **Pure Volcanic Power:** Harness the natural strength of 100% additive-free lava rock mined in the USA.
- • **Root Protection Zone:** Creates a drainage layer that keeps roots safe from waterlogging and rot.
- • **Smart Water Management:** Porous texture absorbs and slowly releases moisture, reducing overwatering risks.
- • **Versatile Plant Booster:** Ideal for cacti, bonsai, succulents, and any potted plants craving superior aeration and drainage.
- • **Perfectly Sized for Precision:** Uniform 1/4-inch diameter rocks designed to fit seamlessly in bonsai, succulent, and cactus planters.

## Overview

Black Lava Rocks (1/4" size) are premium, 100% natural volcanic stones mined in the USA, designed to improve plant health by enhancing drainage, protecting roots, and managing moisture for cacti, bonsai, succulents, and other potted plants. This 5-lb bag offers consistent sizing and superior quality, making it a must-have for professional and hobbyist gardeners alike.

## Description

desertcart.com : Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag) : Patio, Lawn & Garden

Review: Excellent size and quality. - Perfect size for the Bonsai trees I need to work on this month!
Review: As expected - Perfect for my bonsai's

## Features

- MULTIPLE USES: Cacti, bonsai, succulent containers, and potted plants
- SMALL 1/4-INCH SIZE - Lava rocks have an average size of approximately 1/4" in diameter
- 100% NATURAL - Pure volcanic rock with no additives, dyes, or fillers
- PROTECTS PLANT ROOTS - When placed at the bottom of the planter, lava rocks create a place for excess water to pool away from your plant's roots
- AIDS WITH WATERING - Lava rocks are naturally porous, they can absorb and slowly release excess water over time

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CDYYRGPL |
| Best Sellers Rank | #10,575 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #205 in Garden Soil |
| Customer Reviews | 4.5 4.5 out of 5 stars (249) |
| Item Weight | 0.317 ounces |
| Item model number | Plant Lava 1/4 Black |
| Manufacturer | Midwest Hearth |
| Product Dimensions | 10 x 8 x 2 inches |

## Images

![Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag) - Image 1](https://m.media-amazon.com/images/I/81MoJNp3DWL.jpg)
![Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag) - Image 2](https://m.media-amazon.com/images/I/71l6BCt9RfL.jpg)
![Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag) - Image 3](https://m.media-amazon.com/images/I/71+x3y-QV6L.jpg)
![Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag) - Image 4](https://m.media-amazon.com/images/I/71fykkAeWzL.jpg)
![Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag) - Image 5](https://m.media-amazon.com/images/I/61DgVdh8x-L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent size and quality.
*by K***2 on January 21, 2026*

Perfect size for the Bonsai trees I need to work on this month!

### ⭐⭐⭐⭐⭐ As expected
*by D***Z on January 29, 2026*

Perfect for my bonsai's

### ⭐⭐⭐⭐⭐ All good . As described .
*by J***K on November 5, 2025*

As described. Weight as promised , minus an ounce or two . Good for mix with potted plant soil , provide aeration , and to layer bottom for good drainage . Clean , dust free.. I'm happy .

## Frequently Bought Together

- Black Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag)
- Red Lava Rocks for Plants Natural Horticultural Volcanic Rock (1/4" Size) (Mined in USA) (5-lb Bag)
- Pumice for Bonsai, Succulent, Cactus | 2 Quarts Bag | 1/4” Particle Size | The Bonsai Supply

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-04*