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Halatool 1 Inch Rockwool Cubes Garden Stonewool Grow Cubes Starter Plugs for Hydroponics Soilless Cultivation Clone Plants Germination Start (4 Sheets of 200 Cubes)

  • Based on 925 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jan 31
Order within 22 hours and 35 minutes
Available payment plans shown during checkout

Size: 1 in-4 sheets


Features

  • Value Package Includes: You will get 4 slate stonewool, a total of 200 pieces, the quantity is enough to support growing a large number of plants, you will experience the joy of planting.
  • Material: This rockwool is very effective hydroponics supplies, made of high-quality basalt, centrifuged at high speed to form fibers after being melted at high temperature, and compressed into blocks through proprietary process, soft and even texture, good water absorption and strong air permeability, which is helpful to the growth of roots.
  • How to Use: Please cut the rockwool into cubes according to your needs with a knife before soaking. Then simply soak the cubes briefly (10 sec) in a nutrient solution to adjust its EC and pH value to the range required by your need. The optimum pH for most plant is about 5.5. Then control the suitable moisture, illumination and temperature to improve germination rate. When the robust roots penetrate through the rockwool about 0.5-1 inch, transplant it into a suitable container.
  • Easy to Transplant: Rockwool grow cubes keep the seeds long enough to establish a root system because of their high water absorption, you can cut it into different sizes, cubes, it will not sepreate after immersion, easily transplant to net pots, soil, planting machine after rootted.
  • Application: These rockwool starter plugs have good moisturizing effect and handy planting hole, widely used in hydroponics, rooting, plant propagation, cloning systems and so on. Much convenient than starting in the soil, these are great for planting enthusiasts and commercial growers.

Brand: Halatool


Item Form: plant_seed


Coverage: Medium


Specific Uses For Product: Hydroponics


Package Dimensions ‏ : ‎ 11.46 x 5.94 x 4.09 inches; 9.88 ounces


Date First Available ‏ : ‎ December 21, 2020


Country of Origin ‏ : ‎ China


Best Sellers Rank: #2,854 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #23 in Plant Germination Kits


#23 in Plant Germination Kits:


Customer Reviews: 4.0 4.0 out of 5 stars 925 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Sign of the times
Size: 1 in-4 sheets
Awesome new wave of planting seeds - no more messy hands and clean even spacing . Will buy again
Reviewed in the United States on February 23, 2024 by Terri

  • Works great and cheap too!
Size: 1 in-4 sheets
Works great and cheap too!
Reviewed in the United States on January 8, 2024 by Amazon Customer

  • Works good.
Size: 1 in-4 sheets
This works good. Holds moisture good. Only issue I have is that it falls apart too easy when cutting it into individual pieces. Even with a sharp razor.
Reviewed in the United States on April 26, 2023 by T-Rex Wes

  • Similar to fiberglass
Size: 2 in-2 sheets
I thought I was buying a soft growing medium that I could have my child use as part of a science project, but the material is not meant to be touched by bare hands. When I began to separate the squares I realized my hands were itchy and had shiny bits similar to fiberglass. I do not want this product circulating in our hydroponic tower or touching the lettuce we intend to grow. Google states that it is generally safe, but that installers use gloves when handling rockwool. Please be aware of the item you are purchasing and it’s proper use before spending the money. Also, rockwool does not break down, and is therefore not an environmentally friendly product. ... show more
Reviewed in the United States on October 13, 2023 by Kayla McVicker

  • Fell apart
Size: 1.5 in-4 sheets
I have used 1.5 inch starters like these for a few years in a lettuce grow. They have worked great. I have never bought from this company before. These seem bigger and straighter than the previous ones. They also fell apart with the bottom falling off almost all of them. This made them a little to short to effectively reach the water. After three weeks starting plants, it is frustrating to have to check them daily to see if they are wilted in the hydroponic system. I am throwing the whole batch in the trash and going buy where I bought them before. ... show more
Reviewed in the United States on February 14, 2023 by Travels with dogs

  • Worth it
Size: 1 in-2 sheets
It’s exactly what ordered , satisfied customer
Reviewed in the United States on January 25, 2024 by Islandboy

  • perfect size and great packaging
Size: 1 in-2 sheets
thank you for fast shipping
Reviewed in the United States on January 21, 2024 by linda

  • Excellent medium for cuttings
Size: 1 in-2 sheets
Pre hole punched and very absorbent
Reviewed in the United States on January 13, 2024 by James Gillespie

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