Shanghai ABM rock wool Dafeng Co., Ltd began to develop rock wool substrates start from the 1990s. So far, it has a history of more than 20 year and been registered in more than 20 countries, UPuper® sales footprints cover all over the world and has been highly recognized by growers locally and abroad.

Our main products are Seedling plug,propagation plug,Growing Cubes,grow block,Rockwool cubes,propagation block, etc.After more than 20 years of continuous exploration, R & D and practical application in the field of substrates, after three generations of improvement, UPuper® combined with the actual needs of growers, rock wool substrates has been developed into different items for different application fields such as agriculture facility, three-dimensional greening and potted plants to cover much more industries.

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



rockwool grow cube 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.

rockwool grow cube---FAQs Guide

1.About rockwool grow cube,Should I water from the top or root of the plant?
2.Can rockwool grow cube be reused, and what is the recommended cleaning and sterilization process for multiple growing cycles?
3.How do rockwool grow cube provide a stable and consistent environment for plant roots?
4.What are the common challenges or issues that growers may encounter when using rockwool grow cube, and how can they be mitigated?
5.How do you prepare rockwool grow cube for planting, and what pre-soaking or conditioning steps are recommended?
6.As a rockwool grow cube manufacturer,Why use soilless cultivation?
7.Are there organic or sustainable options for rockwool grow cube that meet eco-friendly growing practices?
8.About rockwool grow cube,Why should we open some drains on the rock wool cultivation strip?
9.As a rockwool grow cube manufacturer,UPuper® Rock wool recycling service
10.How do rockwool grow cube compare to traditional soil in terms of plant growth rates and yields?
11.What is the expected lifespan of rockwool grow cube, and how do you determine when it's time to replace them?

1.About rockwool grow cube,Should I water from the top or root of the plant?

Seedling raise can use the tidal seedbed and the drip irrigation control system used after transplanting. Those processes are watered from below the plant and close to the root.

2.Can rockwool grow cube be reused, and what is the recommended cleaning and sterilization process for multiple growing cycles?

Yes, rockwool grow cube can be reused. The recommended cleaning and sterilization process for multiple growing cycles is to soak the cubes in a 10% bleach solution for 10 minutes, rinse them thoroughly with clean water, and then allow them to dry completely before reusing.

3.How do rockwool grow cube provide a stable and consistent environment for plant roots?

rockwool grow cube provide a stable and consistent environment for plant roots by providing a medium that is well-aerated, well-draining, and retains moisture. The cubes are made of a spun mineral fiber that is highly absorbent and can hold up to 20 times its weight in water. This helps to keep the root zone consistently moist and well-aerated, which is essential for healthy root growth. The cubes also provide a stable environment for the roots, as they are not prone to shifting or compressing like other growing media.

4.What are the common challenges or issues that growers may encounter when using rockwool grow cube, and how can they be mitigated?

UPuper is a professional rockwool grow cube manufacturer and may encounter these issues. We provide corresponding suggestions:
1. Poor drainage: Rockwool cubes can become waterlogged if not properly drained. To mitigate this, growers should ensure that the cubes are placed in a tray with adequate drainage holes and that the cubes are not over-watered.
2. pH imbalance: Rockwool cubes can become too acidic or alkaline if not properly managed. To mitigate this, growers should regularly check the pH of the cubes and adjust as needed.
3. Nutrient deficiencies: Rockwool cubes can become nutrient deficient if not properly managed. To mitigate this, growers should regularly check the nutrient levels of the cubes and adjust as needed.
4. Pest infestations: Rockwool cubes can become infested with pests if not properly managed. To mitigate this, growers should regularly inspect the cubes for signs of pests and take appropriate action if necessary.

5.How do you prepare rockwool grow cube for planting, and what pre-soaking or conditioning steps are recommended?

UPuper is centered on customers and always pay attention to customers' needs for rockwool grow cube products.We provide these suggestions:
1. Pre-soak the rockwool cubes in a nutrient solution for 15-20 minutes. This will help to ensure that the cubes are evenly saturated with water and nutrients.
2. Rinse the cubes with clean water to remove any excess nutrient solution.
3. Place the cubes in a tray or container and fill with water until the cubes are completely submerged.
4. Allow the cubes to soak for 24-48 hours. This will help to ensure that the cubes are fully hydrated and ready for planting.
5. Once the cubes are fully hydrated, drain off any excess water and plant your seeds or cuttings.

6.As a rockwool grow cube 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.

7.Are there organic or sustainable options for rockwool grow cube that meet eco-friendly growing practices?

Yes, there are several organic and sustainable options for rockwool grow cubes that meet eco-friendly growing practices. These include organic rockwool cubes made from natural materials such as coconut coir, hemp, and jute, as well as sustainable rockwool cubes made from recycled materials. Additionally, some companies offer rockwool cubes that are treated with natural, non-toxic solutions to reduce the risk of disease and pests.

8.About rockwool grow cube,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.

9.As a rockwool grow cube manufacturer,UPuper® Rock wool recycling service

UPuper® Rockwool cubes can be recycled. Used UPuper® rock wool can be recycled back to the production lines. After separating and melting with other raw materials. Those used products can be made into new rock wool. The products that made of recycled materials have no quality difference from the new ones, and can be re-applied to thermal insulation, fire prevention and noise reduction in the fields of construction, industry and ships.

10.How do rockwool grow cube compare to traditional soil in terms of plant growth rates and yields?

rockwool grow cube are a great alternative to traditional soil for growing plants. They provide excellent aeration and drainage, which can lead to faster growth rates and higher yields. Rockwool also has a higher water-holding capacity than soil, which can help to reduce the amount of water needed for plants. Additionally, rockwool is sterile, so it is less likely to contain disease-causing organisms that can harm plants. Overall, rockwool grow cubes can provide a great environment for plants to thrive in, leading to faster growth rates and higher yields.

11.What is the expected lifespan of rockwool grow cube, and how do you determine when it's time to replace them?

The expected lifespan of rockwool grow cube is typically between 1-3 years, depending on the frequency of use and the quality of the cubes. To determine when it's time to replace them, look for signs of wear and tear such as discoloration, cracking, or crumbling. If the cubes are no longer providing adequate support for the roots of your plants, it's time to replace them.

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