UPuper®, a professional production and export company, is a manufacturer that integrates design and production. The company is headquartered in Hongqiao CBD, Shanghai, and its production base is located in Dafeng District, Yancheng City, Jiangsu Province. It covers an area of over 233000 square meters and has a total investment of 100 million US dollars.

Our main production and export products are as follows: Rockwool cubes,grow block,Seedling plug,Growing Cubes,Grow Plug,propagation plug, etc. Our products have a wide range of applications in various fields. The company has also established a research and development center for rock wool matrix in cooperation with domestic universities and large-scale experimental bases, equipped with professional experimental greenhouses and researchers, continuously promoting the development of new products in the field of rock wool matrix applications.

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



rockwool blocks growing can be made into different specifications according to the needs, which is suitable for automatic sowing, industrialized seedling raising, mechanized transplanting etc. UPuper® rock wool is light without scattering, which can reduce labor cost and intensity. It helps to improve labor environment and production efficiency.
The return liquid of UPuper® rock wool is clean so that it can be recycled, which not only saves water and fertilizer, but also protects the environment. UPuper® rock wool substrate is manufactured in full automatic production lines so that the customer will receive products with accurate size and fast delivery time. UPuper® can meet the needs of different growers in different periods.

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.


Give roots more growing space.Better water and fertilizer retention.

rockwool blocks growing---FAQs Guide

1.As a rockwool blocks growing manufacturer,What's the term of payment?
2.Do rockwool blocks growing have different densities or compositions for use in various growing stages, such as seed germination or flowering?
3.Are rockwool blocks growing compatible with automatic irrigation and nutrient delivery systems commonly used in hydroponics?
4.As a rockwool blocks growing manufacturer,UPuper® Rock wool recycling service
5.What environmental conditions, such as temperature and humidity, are optimal for using rockwool blocks growing in indoor or outdoor growing setups?
6.Do rockwool blocks growing have natural resistance to pests and diseases in horticultural settings?
7.Can rockwool blocks growing be used for cloning and propagating plant cuttings, and what advantages do they offer for this purpose?
8.What are the disposal and recycling options for used rockwool blocks growing, and are they environmentally responsible?
9.How do rockwool blocks growing promote aeration in the root zone, and what benefits does this offer for plant health?
10.What are the common challenges or issues that growers may encounter when using rockwool blocks growing, and how can they be mitigated?
11.As a rockwool blocks growing manufacturer,What is soilless cultivation?

1.As a rockwool blocks growing manufacturer,What's the term of payment?

T/T, Paypal, Credit card etc.

2.Do rockwool blocks growing have different densities or compositions for use in various growing stages, such as seed germination or flowering?

Yes, rockwool blocks growing 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.

3.Are rockwool blocks growing compatible with automatic irrigation and nutrient delivery systems commonly used in hydroponics?

Yes, rockwool blocks growing 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.

4.As a rockwool blocks growing 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.

5.What environmental conditions, such as temperature and humidity, are optimal for using rockwool blocks growing in indoor or outdoor growing setups?

The optimal environmental conditions for using rockwool grow cubes in indoor or outdoor growing setups are temperatures between 65-75°F (18-24°C) and humidity levels between 40-60%. It is important to maintain these conditions to ensure the best results for your plants.

6.Do rockwool blocks growing have natural resistance to pests and diseases in horticultural settings?

No, rockwool grow cubes do not have natural resistance to pests and diseases in horticultural settings. It is important to use proper pest and disease control measures to ensure healthy plants.

7.Can rockwool blocks growing be used for cloning and propagating plant cuttings, and what advantages do they offer for this purpose?

Yes, rockwool blocks growings can be used for cloning and propagating plant cuttings. Rockwool is a great medium for cloning and propagating because it is sterile, lightweight, and provides excellent aeration and drainage. It also holds moisture well, which is important for successful cloning and propagation. Additionally, rockwool is easy to use and can be cut to fit any size container.

8.What are the disposal and recycling options for used rockwool blocks growing, and are they environmentally responsible?

rockwool blocks growing 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.

9.How do rockwool blocks growing promote aeration in the root zone, and what benefits does this offer for plant health?

rockwool blocks growing 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.

10.What are the common challenges or issues that growers may encounter when using rockwool blocks growing, and how can they be mitigated?

UPuper is a professional rockwool blocks growing 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.

11.As a rockwool blocks growing 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.

Tags: rockwool mini cubes,rockwool cloning cubes,coco cube grow,planting rockwool cubes