---
product_id: 46403433
title: "Grodan Rockwool Cubes, Indoor Gardening and Seed Starting Usage, (1 inch) 100 Cubes"
brand: "grodan"
price: "€ 25.55"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.fi/products/46403433-grodan-rockwool-cubes-indoor-gardening-and-seed-starting-usage-1
store_origin: FI
region: Finland
---

# Bulk packaging saves money 100 predrilled 1-inch cubes Easily trimmed for custom fit Grodan Rockwool Cubes, Indoor Gardening and Seed Starting Usage, (1 inch) 100 Cubes

**Brand:** grodan
**Price:** € 25.55
**Availability:** ❌ Out of Stock

## Summary

> 🌱 Grow smarter, save bigger — your indoor garden’s secret weapon!

## Quick Answers

- **What is this?** Grodan Rockwool Cubes, Indoor Gardening and Seed Starting Usage, (1 inch) 100 Cubes by grodan
- **How much does it cost?** € 25.55 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/46403433-grodan-rockwool-cubes-indoor-gardening-and-seed-starting-usage-1)

## Best For

- grodan enthusiasts

## Why This Product

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

## Key Features

- • **Customizable Fit:** Easily trimmed to taper for a snug fit in various hydroponic baskets.
- • **Versatile Indoor Use:** Perfectly sized to fit standard flat trays and compatible with Aerogarden systems.
- • **Precision Growth Pods:** Each 1-inch cube is predrilled for effortless seed starting and cloning.
- • **Cost-Effective Bulk Pack:** 100 cubes packaged together to maximize value without compromising quality.
- • **Sustainable Gardening Upgrade:** Stonewool material supports healthy root development and long-lasting use.

## Overview

Grodan Rockwool Cubes offer 100 durable, 1-inch stonewool grow cubes designed for indoor gardening, seed starting, and cloning. Their predrilled holes simplify planting, while bulk packaging delivers exceptional value. Compatible with standard trays and hydroponic systems like Aerogarden, these cubes promote healthy root growth and can be trimmed for a perfect fit, making them a must-have for millennial gardeners seeking efficiency and sustainability.

## Description

desertcart.com : Grodan Rockwool Cubes, Indoor Gardening and Seed Starting Usage, (1 inch) 100 Cubes : Patio, Lawn & Garden

Review: Save money using these in Aerogardens - These 1" cubes can be used as an alternative to the peat-based grow sponges in the Aerogarden Harvest hydroponic system. They are roughly 1/3 the cost. You can easily trim them using scissors to taper the bottoms for a better fit in the Aerogarden grow baskets. The one downside to this is that they will not compost after use like the peat ones do but could still be dug into garden beds where they will eventually break down. They seem to work well but do tend to grow some algae on the top surface, a little more than the peat ones do.
Review: perfect - great quality. did everything it’s supposed to!

## Features

- Root cuttings, clone plants, start seeds and more
- Includes 100 individual rockwool / stonewool grow cubes
- Perfectly-sized to fit a standard flat growing tray
- Packaged in bulk to save you money
- Predrilled planting holes make seeding and plant propagation a breeze

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0742MQS33 |
| Best Sellers Rank | #441,285 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #839 in Plant Germination Kits |
| Brand | Grodan |
| Color | Brown |
| Customer Reviews | 4.3 4.3 out of 5 stars (698) |
| Date First Available | August 23, 2017 |
| Finish Type | Unfinished |
| Included Components | Plant Stand |
| Indoor/Outdoor Usage | Indoor |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | SG_B0742MQS33_US |
| Material | Stone |
| Mounting Type | Floor Standing |
| Number of Levels | 1 |
| Number of Pieces | 100 |
| Pattern | Solid |
| Planter Form | Tray |
| Product Dimensions | 1"D x 1"W x 1.5"H |
| Shape | Square |
| Size | 1/2 Sheet (100) |
| Special Feature | 100 Cubes |
| Style | Modern |
| UPC | 497154376448 |

## Product Details

- **Color:** Brown
- **Material:** Stone
- **Planter Form:** Tray
- **Special Feature:** 100 Cubes
- **Style:** Modern

## Images

![Grodan Rockwool Cubes, Indoor Gardening and Seed Starting Usage, (1 inch) 100 Cubes - Image 1](https://m.media-amazon.com/images/I/41Oe6q1NjCL.jpg)
![Grodan Rockwool Cubes, Indoor Gardening and Seed Starting Usage, (1 inch) 100 Cubes - Image 2](https://m.media-amazon.com/images/I/61IdvYoIFaL.jpg)

## Questions & Answers

**Q: Can you reuse these?**
A: No.

**Q: I would like to use them to start some cuttings.any one has tried it?**
A: Yes they work great! Make sure to follow the directions on the manufactures website. Grodan101.com or check out this video. https://youtu.be/luwxbCT1QCY

**Q: Are these cubes ph neutral?**
A: GRODAN stone wool is pH Neutral! It is a common misunderstanding that GRODAN is alkaline and that one has to continuously adjust the pH, when in fact stone wool is pH neutral. ... Begin by saturating the stone wool in pH 5.5 water ½ hour before use. There will be a rise in pH of about 1.0 from the residual lime dissolving.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Save money using these in Aerogardens
*by B***D on September 19, 2019*

These 1" cubes can be used as an alternative to the peat-based grow sponges in the Aerogarden Harvest hydroponic system. They are roughly 1/3 the cost. You can easily trim them using scissors to taper the bottoms for a better fit in the Aerogarden grow baskets. The one downside to this is that they will not compost after use like the peat ones do but could still be dug into garden beds where they will eventually break down. They seem to work well but do tend to grow some algae on the top surface, a little more than the peat ones do.

### ⭐⭐⭐⭐⭐ perfect
*by M***N on March 30, 2024*

great quality. did everything it’s supposed to!

### ⭐⭐⭐⭐⭐ excellent
*by D***E on June 16, 2021*

After researching what to use in my new hydro kit, this came out on top. the sponges that were supplied have not done a thing, while these almost all have great growth. I just ordered more to replace the sponges.

## Frequently Bought Together

- Grodan Rockwool Cubes (1 inch) 100 Cubes
- General Hydroponics pH Control Kit for Testing
- General Hydroponics Flora Series: FloraMicro, FloraBloom, FloraGro - 3-Part Hydroponic Nutrient System, 1 qt. Bottles

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**Shop now:** [https://www.desertcart.fi/products/46403433-grodan-rockwool-cubes-indoor-gardening-and-seed-starting-usage-1](https://www.desertcart.fi/products/46403433-grodan-rockwool-cubes-indoor-gardening-and-seed-starting-usage-1)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-22*