1.5" Grodan Rockwool Cubes for Seed Starter (98 Hydroponic Plugs) + The Hydroponic City Stakes
Details
- MaterialRockwool
- ColorWhite
- BrandThe Hydroponic
- Product Dimensions1.5"L x 1.5"W
- StyleTube
Description
🌱 Unlock next-level growth with every cube—because your roots deserve the best!
- HYDROPONIC POWERHOUSE - Engineered for flawless water and air balance to supercharge root growth.
- VERSATILE CULTIVATION - Ideal for vegetables, herbs, flowers, and cannabis—grow your green empire your way.
- P H PERFECTED FOR ROOTS - Inert basalt-based substrate ensures a balanced pH for healthy, vigorous root systems.
- MESS FREE GROWTH MEDIUM - No soil, no fuss—just clean, sterile rockwool that keeps moisture locked in.
- PLUG PLAY PROPAGATION - Pre-sized 1.5" cubes fit perfectly in trays for effortless seed starting and cloning.
Grodan 1.5" Rockwool Cubes (98 plugs) are a sterile, pH-neutral growing medium made from spun basalt rock, designed for hydroponics and soilless systems. They offer superior water retention and optimal aeration to promote rapid, healthy root development, making them perfect for seed starting, cloning, and propagation across a variety of plants.
Specifications
| Item Weight | 0.7 Pounds |
| Number of Pieces | 98 |
| Item Dimensions L x W | 1.5"L x 1.5"W |
| Material Type | Rockwool |
| Style Name | Tube |
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Reviews
C**E
Just what was needed and shipped quick
These are perfect and they arrived really fast. Thank you!!!
A**R
Best quality!
Best quality that I have found
J**.
These work great.
So far these cubes have been the perfect medium for my plants. As long as I soak them for several hours in a ph adjusted solution to get their ph down, my seeds are germinating in 2 days. Very importantly, what I’ve read about other brands, these cubes don’t fall apart after soaking and their size works great with the net cups I use.
M**Z
Great Seed Starter Cubes
I have been very impressed with their performance. Here are a few reasons why I recommend these cubes:Good Quality Material: The rockwool material used in these cubes is top-notch. It's durable, holds moisture well, and provides a great environment for seedlings to grow.Easy to Use: These cubes are very easy to use. All you need to do is soak them in water, plant your seeds, and watch them grow. The cubes also fit perfectly in seedling trays.Fast Germination: I was surprised at how quickly my seeds germinated in these cubes. It took less time than expected, and I think that's due to the excellent moisture retention and aeration provided by the rockwool.Versatile: These cubes can be used for a variety of plants, from vegetables to flowers. They're also great for hydroponic setups.Overall, I'm satisfied with my purchase of the 1.5" Grodan Rockwool Cubes for Seed Starter. They're great quality, easy to use, and produce excellent results. I recommend these cubes to anyone looking for a reliable and efficient way to start their seeds.
S**E
Works for Gardyn
I use these with my Gardyn 4.0 and they work great! Saves me money when I make my own pods.
J**R
Rockwool for hydroponics
Works well for my system
P**P
Work ok. Came damaged so couldnt use half
They are ok. Smaller than i thought. But came smushed and couldn't use a lot.
B**E
The go to!
Have been using Grodans cubes for ages, each and everytime I always am successful as long as my technique and methods were on point/ consistent. No issue whatsoever.
Common Questions
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