---
product_id: 158546325
title: "1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small)"
brand: "mi0512"
price: "€ 31.96"
currency: EUR
in_stock: true
reviews_count: 8
category: "Mi0512"
url: https://www.desertcart.es/products/158546325-1-5-rockwool-starter-plugs-for-hydroponics-rockwool-grow-cubes
store_origin: ES
region: Spain
---

# 28 sterile plugs per sheet 20% air space retains moisture & oxygen 1.5" firm rockwool cubes 1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small)

**Brand:** mi0512
**Price:** € 31.96
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your hydroponics game with rock-solid roots!

## Quick Answers

- **What is this?** 1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small) by mi0512
- **How much does it cost?** € 31.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/158546325-1-5-rockwool-starter-plugs-for-hydroponics-rockwool-grow-cubes)

## Best For

- mi0512 enthusiasts

## Why This Product

- Trusted mi0512 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rooting Revolution:** Firm, sterile rockwool cubes accelerate initial root growth effortlessly.
- • **Oxygen Boosted Growth:** 20% air space ensures roots breathe while soaking up nutrients for rapid development.
- • **Risk-Free Green Thumb:** 24-hour responsive support plus 100% money-back guarantee—grow with confidence.
- • **Plug & Play Propagation:** Predrilled holes make seeding and cloning a seamless, mess-free experience.
- • **Versatile for All Growers:** Perfect for hobbyists and commercial setups craving consistent, reliable starts.

## Overview

These 1.5-inch Rockwool Starter Plugs provide a sterile, inorganic growing medium designed to boost seed germination and cloning success. With 28 firm, breathable cubes per sheet, they retain moisture and oxygen optimally, ensuring faster root development. Ideal for both hobby and commercial growers, these plugs simplify propagation with predrilled holes and come backed by responsive support and a satisfaction guarantee.

## Description

SPECIFICATIONS Size: 1.5”W x 1.5”D x 1.5”H Quantity: 28cubes Package: 1 Sheet ADVANTAGE Firm: hold their shape well and do not fall apart Breathable: retaining plenty of oxygen for rapid plant growth Aseptic production: Inorganic and sterile growing medium better than soil Water & nutrient retention: retains a lot of water and nutrient solution Suitable for hobby or commercial growers WARM TIPS 1.Wear gloves/glasses while handling 2.Don't try to tear the product - cut it Please Note : To Soak , simply dig plug briefly (10 sec) in a starter solution adjusted to pH 5.5 using pH down either or a lemon ,Do not squeeze the plug How to transplant rock wool block Once the you see about 0.5-1" of root growth below the plug, it is time to transplant. They can go straight into the big rockwool hole, as they do not have any wrapping on them. Your best bet is to transplant the starter plug into a 3" or 4" . WHY? It is much easier to control the moisture level in a 3"-4" than a larger block. Just wait until the block feels really light before you water. Smaller blocks like these will keep an even moisture level in the entire block. Rule of thumb: water 15 minutes before the block goes dry. If you transplant into bigger blocks: It is essential to keep the upper part of the block moist by misting or watering sparingly.

Review: Great value - Order this rockwool all the time for our aeroponic tower gardens. These seem to be sturdier and do not melt away like some. Great value!
Review: 100% Satisfaction, - Arrived quickly. One cube was damaged, seller refunded 100%. Used remained cubes, 2 didn't even germinate the seeds. 100% satisfied with the remainder. Easy to use and fit snuggly in my 12 seedling nursery. VERY easily transplanted to soil. Will purchase again

## Features

- Inorganic & Sterile Growing Medium, great for Rooting Cuttings clone plants, germination start seeds and more. Encourages Faster Initial Rooting & Its Firmness Is Guaranteed
- Much easier than starting in soil! Predrilled planting holes make seeding and plant propagation a breeze. Great for hobby and commecial growers
- Provides 20% Air Space When Saturated - Absorbs nutrient solution while retaining plenty of oxygen for rapid root growth!
- Made from good selection of natural rocks, neutral pH and sterile. Cubes Measure:1.5" x 1.5" x 1.5"
- SELLER WARRANTY - Any support you need please email us via your order page, we'll respond to your request within 24 hours, and we promise 100% fund back if you do not like it, WHY NOT HAVE A TRY?

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VYKNGRW |
| Best Sellers Rank | #32,824 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #55 in Hydroponic Growing Media |
| Brand | MI0512 |
| Capacity | 1.5 Inches |
| Color | Brown |
| Customer Reviews | 4.3 4.3 out of 5 stars (4,360) |
| Finish Type | Unfinished |
| Included Components | Tray |
| Indoor/Outdoor Usage | Outdoor |
| Item Weight | 4.9 ounces |
| Item model number | 56 |
| Manufacturer | MI0512 |
| Material | ROCKWOOL |
| Mounting Type | Floor Standing |
| Number of Levels | 28 |
| Number of Pieces | 28 |
| Pattern | Solid |
| Planter Form | Plant Pot |
| Product Dimensions | 1.5"D x 1.5"W x 1.5"H |
| Shape | Cube |
| Size | Small |
| Special Feature | organic |
| Style | Modern |
| Theme | Gardening |

## Product Details

- **Color:** Brown
- **Material:** ROCKWOOL
- **Planter Form:** Plant Pot
- **Special Feature:** organic
- **Style:** Modern

## Images

![1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small) - Image 1](https://m.media-amazon.com/images/I/61FjunmyyxL.jpg)

## Questions & Answers

**Q: After the seed sprouts can you put into the cup**
A: If you were careful you may be able to but you should really use this to sprout the seeds if possible.  I did put a clone in one with success but you will need to make the hole in the top of the cube a bit larger first.

**Q: do these ever expire?**
A: It won't expire, but you can try planting as soon as possible, which will be very effective. Do not place in direct sunlight.

**Q: If using for germination can you plant right into soil after sprouting or do you somehow have to remove from cube?**
A: No, plant directly into the ground and let it grow.

**Q: Will these fit my Lettuce Grow farmstand?**
A: It did not work for me,

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great value
*by G***M on December 26, 2025*

Order this rockwool all the time for our aeroponic tower gardens. These seem to be sturdier and do not melt away like some. Great value!

### ⭐⭐⭐⭐⭐ 100% Satisfaction,
*by C***. on November 5, 2020*

Arrived quickly. One cube was damaged, seller refunded 100%. Used remained cubes, 2 didn't even germinate the seeds. 100% satisfied with the remainder. Easy to use and fit snuggly in my 12 seedling nursery. VERY easily transplanted to soil. Will purchase again

### ⭐⭐⭐⭐ spongey and malleable when wet
*by H***Y on November 11, 2023*

it’s very shapeable and stays wet for the most part. it can break apart and melt if it stays in water. it’s a sensory nightmare for sensitive skin. the whole bag is filled with dust that looks like fiberglass dust and it will get everywhere.

## Frequently Bought Together

- MI0512 1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small)
- VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-25*