UPuper® will be committed to providing pollution-free, high-performance, sustainable and safe substrate for agriculture facility, and lead modern smart agriculture future with excellent quality, first-class service , efficient & accurate planting methods.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.

UPuper® developed a series of products that are suitable for different crops and different growth stages, with multiple specifications to meet the various needs of different growers. Growers can also choose to customize products according to their actual situation. The products include:Grow Plug,grow slab,Rockwool cubes,propagation plug,Seedling plug,grow block,etc.

 Please note: The above table data is for reference only. For specific information, please contact us.



rockwool cubes clones have a strong ability of water saving and fertilizer retention. It provides an excellent growth environment for crop roots. The internal three-dimensional network fiber structure makes the nutrient distribution more evenly, which is conducive to the roots extension and growth. A developed root system is the precondition of high yield and excellent fruit quality.
UPuper® Rock wool has firm structure and is not easy to deform without scattering, so It will not cause any damage to crops root while transplanting, the survival rate will increase, which is also helpful to grow large seedlings. It can help to realize the time to market  in advance or later seasons to bring higher yield, quality and economic benefits.

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.


Uniform water content and electrical conductivity distribution throughout cubes.
Grooves can facilitate water drainage and provide air pruning on root system.
Rapid root system development.

rockwool cubes clones---FAQs Guide

1.How do you monitor and maintain proper moisture levels within rockwool cubes clones throughout the plant's growth cycle?
2.About rockwool cubes clones,What is the best time of for daily irrigation?
3.What is the water retention capacity of rockwool cubes clones, and how does this impact plant hydration and growth?
4.Are there any concerns or precautions related to the health and safety of growers working with rockwool cubes clones, including dust or fiber exposure?
5.How do rockwool cubes clones contribute to root stability and prevent transplant shock when moving plants to larger containers?
6.How are rockwool cubes clones sterilized and prepared for safe use in plant cultivation?
7.How do you prepare rockwool cubes clones for planting, and what pre-soaking or conditioning steps are recommended?
8.What is the expected lifespan of rockwool cubes clones, and how do you determine when it's time to replace them?
9.Can rockwool cubes clones be used in conjunction with other growing media or as part of a multi-stage cultivation process?
10.As a rockwool cubes clones manufacturer,What is soilless cultivation?
11.About rockwool cubes clones,Should I water from the top or root of the plant?
12.What applications can rockwool cubes clones be used for?
13.Do rockwool cubes clones have any insulating properties that benefit plant roots in extreme weather conditions?
14.How do rockwool cubes clones accommodate different irrigation methods, including drip systems, flood and drain, or ebb and flow?

1.How do you monitor and maintain proper moisture levels within rockwool cubes clones throughout the plant's growth cycle?

UPuper has many years of experience in this industry and can share with you these:
1. Monitor the moisture levels of the rockwool cubes regularly. Use a moisture meter to measure the moisture content of the cubes.
2. Adjust the watering schedule accordingly. If the cubes are too dry, water more frequently. If the cubes are too wet, water less frequently.
3. Use a humidity dome or tray to help maintain proper moisture levels.
4. Consider using a hydroponic system to provide a more consistent moisture level.
5. Add a layer of perlite or vermiculite to the top of the rockwool cubes to help retain moisture.
6. Consider using a fan to help circulate air and reduce humidity.

2.About rockwool cubes clones,What is the best time of for daily irrigation?

It depends on your region and season.
In case of similar climate conditions in Shanghai, it is recommended to start watering 2 hours after sunrise and stop watering 2-3 hours before sunset. Long term watering before sunset will lead to plant overgrowth. If necessary (in hot climate for example), please adjust your irrigation strategy in time to keep the water absorbed by plants consistent and grow evenly every day.

3.What is the water retention capacity of rockwool cubes clones, and how does this impact plant hydration and growth?

rockwool cubes clones have a water retention capacity of approximately 80-90%. This means that the cubes can absorb and hold a large amount of water, which helps to keep the plant hydrated and promote healthy growth. The high water retention capacity also helps to reduce the amount of water needed for irrigation, as the cubes can slowly release the stored water to the plant over time.

4.Are there any concerns or precautions related to the health and safety of growers working with rockwool cubes clones, including dust or fiber exposure?

Yes, there are health and safety concerns related to working with rockwool grow cubes. Rockwool is made from melted basaltic rock and chalk, and when it is cut or handled, it can release dust and fibers into the air. This dust and fiber can be inhaled and can cause irritation to the eyes, nose, and throat.
It can also cause skin irritation and respiratory problems. Therefore, it is important to wear protective gear such as a dust mask, safety glasses, and gloves when handling rockwool. Additionally, it is important to ensure that the work area is well-ventilated and that the rockwool is kept away from food and drink.

5.How do rockwool cubes clones contribute to root stability and prevent transplant shock when moving plants to larger containers?

Rockwool grow cubes provide a stable environment for roots to grow and develop. The cubes are designed to hold moisture and nutrients, which helps to reduce transplant shock and promote healthy root growth. The cubes also provide a physical barrier between the roots and the new container, which helps to reduce the risk of root damage during the transplant process. Additionally, the cubes help to keep the roots in place, which helps to prevent the plant from becoming uprooted during the transplant process.

6.How are rockwool cubes clones sterilized and prepared for safe use in plant cultivation?

rockwool cubes clones are typically sterilized using a combination of heat and steam. The cubes are placed in a steam chamber and heated to a temperature of around 180°F (82°C) for a period of time. This process kills any bacteria, fungi, and other microorganisms that may be present in the cubes. After sterilization, the cubes are then soaked in a nutrient solution to prepare them for use in plant cultivation.

7.How do you prepare rockwool cubes clones 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 cubes clones 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.

8.What is the expected lifespan of rockwool cubes clones, and how do you determine when it's time to replace them?

The expected lifespan of rockwool cubes clones 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.

9.Can rockwool cubes clones be used in conjunction with other growing media or as part of a multi-stage cultivation process?

Yes, rockwool cubes clones can be used in conjunction with other growing media or as part of a multi-stage cultivation process. Rockwool cubes are often used in hydroponic systems as a medium for starting seeds or cuttings, and can be used in conjunction with other growing media such as perlite, vermiculite, and coco coir. Rockwool cubes can also be used in multi-stage cultivation processes, such as in aeroponic systems, where the cubes are used to start the seedlings and then transferred to a larger growing medium.

10.As a rockwool cubes clones 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.

11.About rockwool cubes clones,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.

12.What applications can rockwool cubes clones be used for?

rockwool cubes clones can be used for a variety of applications, including hydroponic gardening, seed starting, cloning, and propagation. They are also commonly used in aeroponic systems, as well as for growing mushrooms.

13.Do rockwool cubes clones have any insulating properties that benefit plant roots in extreme weather conditions?

Yes, rockwool cubes clones do have insulating properties that can benefit plant roots in extreme weather conditions. The insulation helps to keep the root zone temperature more consistent, which can help protect the roots from extreme temperatures. Additionally, the insulation can help to retain moisture in the root zone, which can be beneficial in dry climates.

14.How do rockwool cubes clones accommodate different irrigation methods, including drip systems, flood and drain, or ebb and flow?

rockwool cubes clones 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.

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