---
product_id: 18154755
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: "B/.37"
currency: PAB
in_stock: true
reviews_count: 8
category: "Grodan"
url: https://www.desertcart.com.pa/products/18154755-grodan-1-5-x-1-5-x-1-5-mini
store_origin: PA
region: Panama
---

# root development through entire plug optimal air/water balance 1.5" uniform cube size 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:** B/.37
**Availability:** ✅ In Stock

## Summary

> 🌿 Grow smarter, not harder — the mini-blocks that mean business!

## 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?** B/.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/18154755-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 air/water ratio ensures ideal moisture for seedlings
- • **Robust Yet Flexible:** Durable rockwool structure supports roots without breaking
- • **Root Growth Maximized:** Identically shaped plugs promote healthy root expansion throughout
- • **Plug & Play Propagation:** Mini-Blocks sit flat without support—easy tray setup, no fuss
- • **Precision Perfect Cubes:** Consistent 1.5" x 1.5" x 1.5" blocks for uniform seed starting

## Overview

Grodan Mini Blocks are 1.5-inch rockwool cubes designed for superior seed and cutting propagation. Their optimized air/water balance and uniform shape promote robust root development, while their flat-bottom design allows easy tray placement without extra support. Trusted by growers for consistent, hassle-free starts.

## 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.

Review: Works great - These work as they should. the price is a bit high but other than that, I recommend buying unless you can find them cheaper.
Review: Things grow right - I love these for planting seeds and transferring into pellet pots for an aeroponic system. The 1 1/2 inch ones seemed to be big enough for giving the roots a chance to grow and small enough to put in my coco pellet pots. Love them and will be ordering more.

## 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 |
| Best Sellers Rank | #337,096 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #5,071 in Garden Fertilizers |
| Brand | Grodan |
| Customer Reviews | 4.4 4.4 out of 5 stars (355) |
| Is Discontinued By Manufacturer | No |
| Item Form | Square |
| Item Weight | 2.39 ounces |
| Item model number | 4316246501 |
| Liquid Volume | 1.5 Liters |
| Manufacturer | Grodan |
| Number of Items | 45 |
| Package Dimensions | 7.72 x 4.65 x 1.65 inches |
| Specific Uses For Product | Root Development |
| UPC | 638888607068 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Grodan
- **Item Form:** Square
- **Item Weight:** 0.07 Kilograms
- **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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by U***W on August 2, 2024*

These work as they should. the price is a bit high but other than that, I recommend buying unless you can find them cheaper.

### ⭐⭐⭐⭐⭐ Things grow right
*by J***E on January 22, 2024*

I love these for planting seeds and transferring into pellet pots for an aeroponic system. The 1 1/2 inch ones seemed to be big enough for giving the roots a chance to grow and small enough to put in my coco pellet pots. Love them and will be ordering more.

### ⭐⭐⭐⭐⭐ Easy first foray into hydroponics
*by K***R on March 2, 2019*

I am just starting to experiment with hydroponics and this was my first experience with rock wool. These little cubes are much easier to use than I expected. It was a good price for what I considered a good size for my needs and I'm pleased with how well it's working out. I recommend this to anyone starting out as it's a small investment but with so much potential.

## 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 Panama*
*Store origin: PA*
*Last updated: 2026-03-04*