Shanghai ABM rock wool Dafeng Co., Ltd is a professional supplier of rock wool matrix. Since the 1990s, rock wool substrates have been developed and have a history of over 20 years, registered in more than 20 countries. We have two world-class production lines, achieving zero emissions of solid waste and wastewater, and ultra-low emissions of exhaust gases. It is the largest green rock wool production base with the highest investment and leading technological equipment in the entire Asia Pacific region.

Our products include Growing Cubes,Grow Plug,grow block,propagation block,Seedling plug,grow slab, etc. Our company has obtained certificates such as SGS, CE, and Australian heavy metal standard test. Our mission is to provide new design projects and high-quality products at competitive prices.UPuper® is gradually carrying out the "recycling" plan - recycling the used rock wool into new products, and continue to play an important role in building energy conservation, industrial thermal insulation and ship safety.

 Please note: This table is for reference only, please consult us for specific information.



grow cubes has the least impact on the environment among all substrates. UPuper® rock wool cubes are made from natural rock and melted at 1500℃. It has no pathogenic bacteria, toxic and harmful substances.
It provides a pollution-free root environment for growing green crops. UPuper® Rock wool substrates can also realize recycling, which makes it to become a green, safe, stable and reliable soilless culture medium.

Instructions for using rockwool cubes:
1. Soak the rockwool cubes in warm water to fully foam.
2. Put the rockwool cubes into a container and distribute evenly.
3. Place the seeds gently on the surface in the correct direction and wrap them in rockwool cubes, as the frosted rockwool  grow cubes can absorb enough water to ensure sufficient moisture coverage of the plant roots.
4. Depending on the variety of plants, they can grow new roots under the support of external plant sprouting cloths, achieving germination.
5. Put the sprouted cloth blocks of plants back into the container and replenish them with water in a timely manner.


Individually wrapped cubes hold the rockwool’s shape and prevent algae growth.
Easy to transport without hurting the roots and can improve transplanting efficiency.

grow cubes---FAQs Guide

1.How do grow cubes accommodate different irrigation methods, including drip systems, flood and drain, or ebb and flow?
2.What are the disposal and recycling options for used grow cubes, and are they environmentally responsible?
3.Is it possible to get samples of the grow cubes for you?
4.About grow cubes,Why should we open some drains on the rock wool cultivation strip?
5.Are grow cubes compatible with automatic irrigation and nutrient delivery systems commonly used in hydroponics?
6.What is the composition and material of grow cubes, and how do they compare to other growing mediums like soil or coco coir?
7.Are there rockwool grow cube products specifically designed for vertical gardening or living walls?
8.How do you prevent the formation of algae or mold on the surface of grow cubes?
9.As a grow cubes manufacturer,What is soilless cultivation?
10.Do grow cubes have different densities or compositions for use in various growing stages, such as seed germination or flowering?
11.What types of crops or plants are best suited for cultivation in grow cubes, and are there any limitations?
12.As a grow cubes manufacturer,Why use soilless cultivation?
13.How do grow cubes promote aeration in the root zone, and what benefits does this offer for plant health?
14.As a grow cubes manufacturer, How to control the EC Value of rock wool planting strip?
15.About grow cubes,How to calculate the irrigation amount of nutrient solution?

1.How do grow cubes accommodate different irrigation methods, including drip systems, flood and drain, or ebb and flow?

grow cubes can accommodate different irrigation methods by providing a variety of sizes and shapes to fit different systems. For example, the cubes can be cut to fit a drip system, or they can be used in a flood and drain system by providing a larger surface area for water to flow through. For an ebb and flow system, the cubes can be used to create a platform for the plants to sit on, allowing the water to flow around them.

2.What are the disposal and recycling options for used grow cubes, and are they environmentally responsible?

grow cubes are made from a combination of basalt and slag, which are both non-toxic and non-hazardous materials. The best way to dispose of used rockwool grow cubes is to recycle them. Many local recycling centers accept rockwool grow cubes for recycling. Alternatively, you can contact your local waste management company to see if they offer a special collection service for rockwool grow cubes.
Recycling rockwool grow cubes is an environmentally responsible option as it reduces the amount of waste that goes to landfills. Additionally, recycling rockwool grow cubes helps conserve resources and reduce the amount of energy needed to produce new materials.

3.Is it possible to get samples of the grow cubes for you?

Yes, we can provide samples for your quality testing.

4.About grow cubes,Why should we open some drains on the rock wool cultivation strip?

The drain is opened at the bottom of both ends of the cultivation strip. The drain is opened to allow the normal discharge of excess water and fertilizer to keep the EC Value in the planting strip stable. The location of drainage holes and the correct irrigation amount directly affect the distribution of water and EC in the cultivation strip. Be sure not to set additional drainage holes in the planting strip when you use them, otherwise it will change the planting strip drainage mode, which may be unfavorable to the plant roots in some areas in the planting strip. The surplus water and fertilizer will flow into the diversion tank and return to the irrigation system for recycling after disinfection and other process. It can not only solve the problem of water and fertilizer, but also protect the environment.

5.Are grow cubes compatible with automatic irrigation and nutrient delivery systems commonly used in hydroponics?

Yes, grow cubes are compatible with automatic irrigation and nutrient delivery systems commonly used in hydroponics. However, it is important to note that rockwool cubes should be soaked in water before use to ensure that they are properly hydrated. Additionally, rockwool cubes should be flushed with water every few weeks to prevent nutrient buildup.

6.What is the composition and material of grow cubes, and how do they compare to other growing mediums like soil or coco coir?

grow cubes are made from a combination of basalt and chalk that is melted and spun into fibers. The fibers are then compressed into cubes. Rockwool is a great growing medium because it is sterile, lightweight, and provides excellent drainage and aeration. It also holds moisture well and is pH neutral. Compared to soil, rockwool is much lighter and easier to work with, and it does not contain any of the pests or diseases that can be found in soil. Compared to coco coir, rockwool is more sterile and does not contain any of the salts that can be found in coco coir. Rockwool is also more lightweight and easier to work with than coco coir.

7.Are there rockwool grow cube products specifically designed for vertical gardening or living walls?

Yes, there are rockwool grow cubes specifically designed for vertical gardening and living walls. These cubes are designed to provide optimal air and water retention, as well as support for the plants. They are available in various sizes and shapes to fit any vertical gardening or living wall setup.

8.How do you prevent the formation of algae or mold on the surface of grow cubes?

To avoid causing losses due to these issues, UPuper recommends that you do the following:
1. Make sure to keep the rockwool grow cubes in a well-ventilated area.
2. Avoid overwatering the rockwool grow cubes.
3. Clean the rockwool grow cubes regularly with a mild detergent and water solution.
4. Use a fungicide or algaecide to prevent the formation of algae or mold.
5. Make sure to keep the rockwool grow cubes away from direct sunlight.

9.As a grow cubes manufacturer,What is soilless cultivation?

Soilless cultivation is a method of cultivating plants without natural soil nor use compound fertilizer and similar compound fertilizer based on soil. It is a new method that only uses nutrient solution to support for plant growth or various cultivation substrates that can replace soil and are suitable for plant growth. Soilless cultivation can be divided into fog cultivation, water cultivation and solid substrate cultivation. UPuper® Rock wool substrate belongs to solid substrate cultivation.

10.Do grow cubes have different densities or compositions for use in various growing stages, such as seed germination or flowering?

Yes, grow cubes can have different densities and compositions for use in various growing stages. For example, some rockwool cubes are designed specifically for seed germination, while others are designed for flowering. The density and composition of the rockwool cubes can vary depending on the type of plant being grown and the desired outcome.

11.What types of crops or plants are best suited for cultivation in grow cubes, and are there any limitations?

grow cubes are best suited for hydroponic cultivation of vegetables, herbs, and flowers. Some of the most popular crops grown in rockwool cubes include tomatoes, peppers, cucumbers, lettuce, and basil. Rockwool cubes can also be used to propagate cuttings from existing plants.
The main limitation of rockwool cubes is that they are not suitable for growing root vegetables such as potatoes, carrots, and onions. Additionally, rockwool cubes are not suitable for growing plants that require a lot of water, such as watermelons and pumpkins.

12.As a grow cubes manufacturer,Why use soilless cultivation?

Soilless cultivation is the most advanced cultivation technology in modern agriculture. From cultivation facilities to environmental control, the whole process can be monitored and regulated according to the needs of crop growth and development. It can realize early maturity and high yield of crops; Production of pollution-free products; greatly improve working conditions, save labor and reduce labor intensity; Save water and fertilizer; Avoid soil continuous planting barriers; it has no regional restrictions and can make the space fully used; so that contribute to the automation and intelligence of cultivation.

13.How do grow cubes promote aeration in the root zone, and what benefits does this offer for plant health?

grow cubes promote aeration in the root zone by providing a porous, airy environment for the roots to grow in. This helps to ensure that the roots have access to oxygen, which is essential for healthy root growth and development. The increased aeration also helps to reduce the risk of root rot and other diseases, as well as promoting better nutrient uptake. Additionally, the increased aeration helps to regulate the temperature of the root zone, which can help to protect the plant from extreme temperatures.

14.As a grow cubes manufacturer, How to control the EC Value of rock wool planting strip?

The rock wool cultivation strip itself does not contain any nutrients, so it only needs to adjust the nutrient supply according to the EC value required by each growth stage of the crops. At the same time, growers can make small and frequent changes in the irrigation strategies (for example, when the EC is too high, multiple slight adjustments are more convenient and safe than large adjustments).

15.About grow cubes,How to calculate the irrigation amount of nutrient solution?

In case of tomatoes, from planting to flowering: the irrigation amount is about 300-500ml / plant / day; From flowering stage to early fruiting stage: the irrigation amount is about 800-1200ml / plant / day; From early fruiting to harvest period: the irrigation amount is 1200-1500ml / plant / day, and the irrigation amount in full fruit period is about 1500-2000ml / plant / day. You can also bring out a rough calculation according to the shape and size of rock wool.

Tags: grow plugs,rockwool cubes 1 inch,cultivation substrate,growing pansy plugs,coir grow plugs