UPuper® is located in Shanghai, close to both Shanghai Port and Ningbo Port. We are a professional enterprise that produces and sells grow block,Growing Cubes,grow slab,Rockwool cubes,propagation plug,propagation block and other products. We can provide a variety of products to meet the constantly changing market demands.

Our main markets include regions such as Asia,America,Oceania, the United States, France, Liechtenstein,Paraguay,Glorioso Islands,Estonia, and other countries.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.



UPuper® Rock wool does not carry, absorb or consume any water or nutrients. Meanwhile, big rockwool cubes does not prevent crops from absorbing nutrients. The elements given by water and fertilizer can be totally provided to plants. Growers do not need to consider the various effects of the substrates itself on crops.
People can accurately mix the nutrition solution required by crops in each growing stage. It is conducive to the data collection, analysis and management to optimize planting strategies. UPuper® rock wool’s EC and pH values are stable, which is convenient to set a unified irrigation scheme to have an easier management, and keep the consistent growth of crop roots.

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.

big rockwool cubes---FAQs Guide

1.How do big rockwool cubes compare to traditional soil in terms of plant growth rates and yields?
2.What is the expected lifespan of big rockwool cubes, and how do you determine when it's time to replace them?
3.How are rockwool grow cubes used in horticulture and hydroponics?
4.Are there specific tools or accessories designed for working with big rockwool cubes, such as hole punches or plant supports?
5.What are rockwool grow cubes?
6.How are big rockwool cubes sterilized and prepared for safe use in plant cultivation?
7.What applications can big rockwool cubes be used for?
8.What types of crops or plants are best suited for cultivation in big rockwool cubes, and are there any limitations?
9.About big rockwool cubes,What is the minimum purchase?
10.As a big rockwool cubes manufacturer, How to control the EC Value of rock wool planting strip?

1.How do big rockwool cubes compare to traditional soil in terms of plant growth rates and yields?

big rockwool cubes 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.

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

The expected lifespan of big rockwool cubes 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.

3.How are rockwool grow cubes used in horticulture and hydroponics?

Rockwool grow cubes are used in horticulture and hydroponics as a medium for growing plants. They are made from spun basalt rock and chalk, and are lightweight, sterile, and easy to use. The cubes provide an ideal environment for root growth, and can be used to start seeds, propagate cuttings, and grow plants from seedlings. They are also used to support hydroponic systems, as they can hold water and nutrients, and provide an ideal environment for root growth.

4.Are there specific tools or accessories designed for working with big rockwool cubes, 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.

5.What are rockwool grow cubes?

Rockwool grow cubes are a type of growing medium made from melted basalt rock and chalk that is spun into fibers and then compressed into cubes. They are commonly used in hydroponic systems and are known for their excellent water retention and air porosity. Rockwool cubes are also pH neutral, making them ideal for growing a variety of plants.

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

big rockwool cubes 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.What applications can big rockwool cubes be used for?

big rockwool cubes 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.

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

big rockwool 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.

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

The MOQ is one carton.

10.As a big rockwool 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).

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