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5GallonBucketHydro

Rockwool Starter Cubes 2.0" for Seedling Propagation, Cloning, Rapidrooter Replacement (2inch - 1/2 Sheet 25 Cubes)

  • Based on 273 reviews
Condition: New
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Availability: In Stock.
Fulfilled by The Hydroponic City Los Angeles
Arrives Sep 4 – Sep 5
Order within 15 hours and 23 minutes
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Color: 2inch - 1/2 Sheet 25 Cubes


Features

  • Perfectly-sized to fit a standard flat growing tray (or 1/2 tray)
  • Predrilled planting holes make seeding and plant propagation a breeze!
  • Optimum water and oxygen retention for seedlings
  • 2" Cubes

Description

Grodan stonewool is known for its quality, consistency and performance. Each sheet of Grodan Stonewool A-OK Starter Plugs is perfectly-sized to fit a standard flat and each plug has a pre-formed hole to easily plant seeds and cuttings. Once rooted, gardeners can transfer individual A-OK Starter Plugs to larger pieces of stonewool or plant them directly in soil. Grodan's A-OK Starter Cubes come with a pre-made planting hole which easily allows you to place cuttings, seeds etc into the cubes for fast, easy rooting and sprouting. Once roots develop you can easily separate the cubes and transplant using whatever method you prefer.

Brand: 5GallonBucketHydro


Style: Modern


UPC:


Package Dimensions: 10.5 x 10.2 x 1.7 inches


Item Weight: 6.4 ounces


Manufacturer: 5gallonbuckethydro


Item model number: Cubes20_25


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 4 – Sep 5

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View our full returns policy here.

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Top Amazon Reviews

    • Overpriced but packaged well
Color: 49 Cubes (1/2 Sheet)
Definitely overpriced given how inexpensive these ended up being locally. They arrived as expected though, and packaged really well - so while I wasn't entirely thrilled finding these for 50% of what they're costing here, I was enthralled by how well everything arrived. Otherwise, they function just as rockwool should and I've seen much success from using them. ... show more
Reviewed in the United States on April 19, 2016 by James
    • Works better than Seedling Soil
So much easier to get seeds to sprout than seedling starting soil. As soon as my seedlings were three times the size of these cubes, I transplanted them into other pots with soil or into my raised garden bed.
Reviewed in the United States on April 1, 2018 by Marie E Santos
    • Not the miracle I was looking for... it's better using MG seedling and cloning/cutting soil mix instead.
I didn't have much success using this product, even after buying both cloning gels and powders and soaking the cubes in a PH down substance. A couple of seeds took in this, but no luck with cloning. After the seeds took I found out that this product is non-biodegradable so with the plants roots entwined in this it makes it really hard to transplant and not ruin the roots. I also believe this isn't the best for ourselves or the planet. I wouldn't recommend, in fact I had much more success with Miracle Grows seedling and cloning soil. Everything seemed to like that more then using this. And also with the seeds they took off faster in the soil then these cubes. ... show more
Reviewed in the United States on May 31, 2016 by Billy R
    • These are great for starting seedlings
The pros: These are great for starting seedlings. They work well and seem to have a really good success rate compared to other media. The cons: Messy. Feels like fiberglass. Requires preparation before adding seeds. When they arrived many were broken. I'd say about 5-10% of the squares were sort of unusable. another 20% were not in pristine condition. Maybe just sensitive to shipping. I just ordered another version of these in 200 qty and will see how those fare [Better qty per unit] ... show more
Reviewed in the United States on May 3, 2016 by Dr. Sweet
    • These are great. Not sure what else to say
Color: 49 Cubes (1/2 Sheet)
These are great. Not sure what else to say. They are rockwool lol. I use them to start seeds and for hydroponics and they work great!
Reviewed in the United States on September 19, 2016 by Mat
    • CHEAP
Color: 49 Cubes (1/2 Sheet)
this cubes are really good quality, theywork good and inexpensive.
Reviewed in the United States on August 12, 2016 by Erick Millan
    • No better way to clone
Color: 49 Cubes (1/2 Sheet)
There is just no better way to clone. These cubes separate easily and quickly promote rooting. I usually only have a 5% fail rate with these cubes, compared to about 20% with pellets. I clone in a bottom haeted cloning chamber.
Reviewed in the United States on November 30, 2015 by BJ
    • Rockwool has a safety concern
Color: 49 Cubes (1/2 Sheet)
It works for hydroponics as expected but I learned that rockwool can cause health issues and also not sustainable.
Reviewed in the United States on October 14, 2020 by rukshan1015

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