Shanghai ABM rock wool Dafeng Co., Ltd is a professional enterprise that produces rock wool substrates for soilless cultivation, with complete testing equipment and strong technical strength. Our products mainly include grow block,propagation plug,Rockwool cubes,Seedling plug,Growing Cubes,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.



large grow cubes for plants 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.


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

large grow cubes for plants---FAQs Guide

1.Are there organic or sustainable options for large grow cubes for plants that meet eco-friendly growing practices?
2.How are large grow cubes for plants sterilized and prepared for safe use in plant cultivation?
3.What are the common challenges or issues that growers may encounter when using large grow cubes for plants, and how can they be mitigated?
4.How do large grow cubes for plants provide a stable and consistent environment for plant roots?
5.What environmental conditions, such as temperature and humidity, are optimal for using large grow cubes for plants in indoor or outdoor growing setups?
6.As a large grow cubes for plants manufacturer, What's the lead time?
7.About large grow cubes for plants,How to calculate the irrigation amount of nutrient solution?
8.What are the disposal and recycling options for used large grow cubes for plants, and are they environmentally responsible?
9.About large grow cubes for plants,What is the best time of for daily irrigation?
10.Do large grow cubes for plants require any specific pH and nutrient management practices for optimal plant growth?
11.What types of crops or plants are best suited for cultivation in large grow cubes for plants, and are there any limitations?
12.What applications can large grow cubes for plants be used for?
13.As a large grow cubes for plants manufacturer,What is soilless cultivation?
14.How do large grow cubes for plants compare to traditional soil in terms of plant growth rates and yields?

1.Are there organic or sustainable options for large grow cubes for plants 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.

2.How are large grow cubes for plants sterilized and prepared for safe use in plant cultivation?

large grow cubes for plants 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.

3.What are the common challenges or issues that growers may encounter when using large grow cubes for plants, and how can they be mitigated?

UPuper is a professional large grow cubes for plants 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.

4.How do large grow cubes for plants provide a stable and consistent environment for plant roots?

large grow cubes for plants 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.

5.What environmental conditions, such as temperature and humidity, are optimal for using large grow cubes for plants 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.As a large grow cubes for plants manufacturer, What's the lead time?

About 10-15(normally) days for a 40HQ container.

7.About large grow cubes for plants,How to calculate the irrigation amount of nutrient solution?

In case of tomatoes, from planting to flowering: the irrigation amount is about 300-500ml / plant / day; From flowering stage to early fruiting stage: the irrigation amount is about 800-1200ml / plant / day; From early fruiting to harvest period: the irrigation amount is 1200-1500ml / plant / day, and the irrigation amount in full fruit period is about 1500-2000ml / plant / day. You can also bring out a rough calculation according to the shape and size of rock wool.

8.What are the disposal and recycling options for used large grow cubes for plants, and are they environmentally responsible?

large grow cubes for plants 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.About large grow cubes for plants,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.

10.Do large grow cubes for plants require any specific pH and nutrient management practices for optimal plant growth?

Yes, large grow cubes for plants require specific pH and nutrient management practices for optimal plant growth. The ideal pH range for rockwool is between 5.5 and 6.5. Nutrient management should include regular monitoring of the nutrient solution and adjusting the levels as needed. Additionally, it is important to flush the rockwool with fresh water every few weeks to prevent nutrient buildup.

11.What types of crops or plants are best suited for cultivation in large grow cubes for plants, and are there any limitations?

large grow cubes for plants 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.

12.What applications can large grow cubes for plants be used for?

large grow cubes for plants 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.As a large grow cubes for plants 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.

14.How do large grow cubes for plants compare to traditional soil in terms of plant growth rates and yields?

large grow cubes for plants 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.

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