UPuper® is a professional enterprise that produces rock wool substrates for soilless cultivation, with complete testing equipment and strong technical strength. Our products mainly include propagation block,propagation plug,Growing Cubes,Seedling plug,grow block,grow slab and are widely used in agriculture, landscaping, and other industries. Our product has passed SGS, CE, and Australian heavy metal standard tests.

Nowadays, our products are registered in more than 20 countries and have a global sales footprint. Our products have gained widespread recognition and trust from users and can meet the constantly changing economic and social needs. UPuper ® We will be committed to providing pollution-free, high-performance, sustainable, and safe substrates for agricultural facilities, and leading the future of modern smart agriculture with excellent quality, first-class services, and efficient and accurate planting methods.

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



rockwool starter cubes hydroponics 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.


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 starter cubes hydroponics---FAQs Guide

1.Can rockwool starter cubes hydroponics be reused, and what is the recommended cleaning and sterilization process for multiple growing cycles?
2.As a rockwool starter cubes hydroponics manufacturer, What about your package?
3.What types of crops or plants are best suited for cultivation in rockwool starter cubes hydroponics, and are there any limitations?
4.How do you prevent the formation of algae or mold on the surface of rockwool starter cubes hydroponics?
5.As a rockwool starter cubes hydroponics manufacturer, How to control the EC Value of rock wool planting strip?
6.Are there any concerns or precautions related to the health and safety of growers working with rockwool starter cubes hydroponics, including dust or fiber exposure?
7.Can rockwool starter cubes hydroponics be used in combination with traditional soil to improve aeration and drainage in potted plants?
8.How do rockwool starter cubes hydroponics promote aeration in the root zone, and what benefits does this offer for plant health?
9.About rockwool starter cubes hydroponics,What is the minimum purchase?
10.As a rockwool starter cubes hydroponics manufacturer,UPuper® Rock wool recycling service
11.Are there specific tools or accessories designed for working with rockwool starter cubes hydroponics, such as hole punches or plant supports?
12.Are there rockwool grow cube products specifically designed for vertical gardening or living walls?
13.About rockwool starter cubes hydroponics,Should I water from the top or root of the plant?
14.Do rockwool starter cubes hydroponics have natural resistance to pests and diseases in horticultural settings?

1.Can rockwool starter cubes hydroponics be reused, and what is the recommended cleaning and sterilization process for multiple growing cycles?

Yes, rockwool starter cubes hydroponics 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.

2.As a rockwool starter cubes hydroponics manufacturer, What about your package?

Export standard package. Cartons tested for compressive strength. Pallet packaging is also acceptable.

3.What types of crops or plants are best suited for cultivation in rockwool starter cubes hydroponics, and are there any limitations?

rockwool starter cubes hydroponics 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.

4.How do you prevent the formation of algae or mold on the surface of rockwool starter cubes hydroponics?

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.

5.As a rockwool starter cubes hydroponics 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).

6.Are there any concerns or precautions related to the health and safety of growers working with rockwool starter cubes hydroponics, 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.

7.Can rockwool starter cubes hydroponics be used in combination with traditional soil to improve aeration and drainage in potted plants?

Yes, rockwool starter cubes hydroponics can be used in combination with traditional soil to improve aeration and drainage in potted plants. Rockwool is a lightweight, porous material that helps to improve drainage and aeration in soil, allowing for better root growth and healthier plants. It can also help to retain moisture in the soil, which is beneficial for plants that require more frequent watering.

8.How do rockwool starter cubes hydroponics promote aeration in the root zone, and what benefits does this offer for plant health?

rockwool starter cubes hydroponics 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.

9.About rockwool starter cubes hydroponics,What is the minimum purchase?

The MOQ is one carton.

10.As a rockwool starter cubes hydroponics 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.

11.Are there specific tools or accessories designed for working with rockwool starter cubes hydroponics, such as hole punches or plant supports?

Yes, there are several tools and accessories designed specifically for working with rockwool grow cubes. These include hole punches, plant supports, and trays for holding the cubes. Additionally, there are tools for cutting and shaping the cubes, as well as tools for transplanting seedlings from the cubes into larger containers.

12.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.

13.About rockwool starter cubes hydroponics,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.

14.Do rockwool starter cubes hydroponics 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.

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