---
product_id: 472533978
title: "Grodan 1.5\" x 1.5\" x 1.5\" Mini Blocks Grow Media Rockwool Stonewool Cube Propagation + Twin Canaries Chart - 15 Cubes"
brand: "grodan"
price: "$56.17"
currency: USD
in_stock: true
category: "Grodan"
url: https://www.desertcart.ec/products/472533978-grodan-1-5-x-1-5-x-1-5-mini
store_origin: EC
region: Ecuador
---

# Uniform seed holes for consistent growth Optimal air/water balance for root health 1.5" cube size for precision planting Grodan 1.5" x 1.5" x 1.5" Mini Blocks Grow Media Rockwool Stonewool Cube Propagation + Twin Canaries Chart - 15 Cubes

**Brand:** grodan
**Price:** $56.17
**Availability:** ✅ In Stock

## Summary

> 🌿 Grow smarter, not harder — the future of propagation is here!

## Quick Answers

- **What is this?** Grodan 1.5" x 1.5" x 1.5" Mini Blocks Grow Media Rockwool Stonewool Cube Propagation + Twin Canaries Chart - 15 Cubes by grodan
- **How much does it cost?** $56.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/472533978-grodan-1-5-x-1-5-x-1-5-mini)

## 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

- • **Balanced Hydration:** Engineered for ideal air-to-water ratio, promoting vigorous root development without overwatering.
- • **Robust Yet Flexible:** Durable rockwool structure withstands handling while adapting to root expansion.
- • **Root Zone Optimization:** Encourages root growth throughout the entire plug for healthier, faster plants.
- • **Precision Perfect Cubes:** Consistent 1.5" x 1.5" x 1.5" blocks ensure uniform seed placement and growth.
- • **Consistent Seed Hole Design:** Identically shaped plugs guarantee even germination and easy transplanting.

## Overview

Grodan Mini Blocks are 1.5" rockwool cubes designed for superior seed propagation, featuring improved homogeneity, optimal air and water balance, and consistent seed hole shapes to maximize root development and ensure uniform plant growth across all 15 cubes.

## Description

Starter Mini-Blocks can sit in a tray (flat) without support for easy starting of seeds and cuttings. For best results put them on the flat side of the Gro-Smart Tray to ensure good airflow around the cubes. Remove wrapping and transplant into any loose media such as Grow-cubes or Grow-Chunks, or leave wrapping on and set on top of a larger Gro-Block. The advantage Mini-Blocks have over A-OK Starter Plugs and Macro Plugs is that Mini-Blocks can sit in a tray without any support.

## Features

- Improved homogeneity
- Optimum robustness and flexibility
- Ideal air/water balance
- Consistent shape of the seed hole
- Identically shaped plugs, Root development through the entire plug

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00XQEDDZ6 |
| Brand | Grodan |
| Brand Name | Grodan |
| Coverage | Medium |
| Item Form | Square |
| Item Weight | 0.07 Kilograms |
| Item form | Square |
| Item weight | 0.07 Kilograms |
| Liquid Volume | 1.5 Liters |
| Liquid volume | 1.5 Liters |
| Manufacturer | Grodan |
| Model Number | 4316246501 |
| Specific Uses For Product | Root Development |
| Specific uses for product | Root Development |
| Target Species | plants |
| UPC | 638888607068 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Grodan
- **Item weight:** 0.07 Kilograms
- **Item form:** Square
- **Liquid volume:** 1.5 Liters
- **Specific uses for product:** Root Development

## Images

![Grodan 1.5" x 1.5" x 1.5" Mini Blocks Grow Media Rockwool Stonewool Cube Propagation + Twin Canaries Chart - 15 Cubes - Image 1](https://m.media-amazon.com/images/I/71F+F9z+y1L.jpg)

## Questions & Answers

**Q: Do these have any nutrition? For the seed like regular super soil**
A: No, you have to add nutrients to your water

**Q: How many days old would you transplant cannabis seedlings from these mini-cubes to 6x6? I’m thinking 3 weeks from seed?**
A: Anytime you don't have to wait the bigger the better put them outside will be just fine

**Q: Safe for aquarium fish?**
A: They are high in ph. Soak them in fresh water for a few hours and then rinse for a few minutes and the soul be fine and check your aquarium water and adjust the ph as you would normally

**Q: can you plant these in soil?**
A: Yes you can on a side note these are inert meaning no nutrients probably just a little cal/mag. Or just soak in water

## Frequently Bought Together

- Grodan 1.5" x 1.5" x 1.5" Mini Blocks Grow Media Rockwool Stonewool Cube Propagation + Twin Canaries Chart - 15 Cubes
- HydroDynamics Clonex Rooting Compound, 100 ml
- General Hydroponics pH Control Kit For A Balanced Nutrient Solution

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-22*