CP S40 Propagation Cube - Upuper Rockwool

The UPuper CP S40 Mini Propagation Cube is an advanced rockwool-based growing medium designed to improve seed germination and plant cloning. These high-quality mini grow blocks offer an excellent environment for root development, ensuring healthy seedlings and cuttings that can be seamlessly transplanted to larger rockwool slabs or traditional soil setups.

Ideal for cannabis cloning, rose cuttings, and larger-seed propagation, UPuper CP S40 blocks provide optimal moisture retention, aeration, and disease-free conditions to maximize plant success. Each 1.5 x 1.5 x 1.5-inch cube is individually wrapped in a white protective film, offering better handling, controlled moisture levels, and reduced algae growth.

Why Choose UPuper CP S40 Rockwool Mini Grow Blocks?

UPuper CP S40 propagation cubes stand out as a reliable, efficient, and scalable solution for growers looking for consistent results in seed starting and cloning. These high-density, non-decomposable rockwool cubes provide a uniform structure, allowing:

• Stronger root establishment with unrestricted growth. 
• High moisture retention for optimal hydration.
•  Improved air circulation for oxygenated roots.
•  Pathogen-free material, reducing the risk of seedling diseases.
•  Easy handling and transplantation to larger growing mediums.

Whether used in hydroponic systems, greenhouse setups, or soil-based environments, these versatile mini grow blocks simplify propagation and improve success rates.

Key Features and Benefits of the UPuper CP S40 Mini Propagation Cube

The UPuper CP S40 Mini Propagation Cube is designed to provide an optimal growing environment for seed germination, cloning, and hydroponic cultivation. With high-quality rockwool construction and an innovative protective wrap, it ensures consistent results for both home gardeners and commercial growers. Below are the key features and benefits that make this propagation cube a reliable choice for plant propagation.

1. Perfect for Seed Germination and Cloning

The UPuper CP S40 Propagation Cube is specially designed for:

• Larger-seed propagation, including herbs, vegetables, and fruit-bearing plants.
• Cloning and cuttings, such as cannabis clones and rose propagation.
• Hydroponic and soil-based transplantation, supporting various growing methods.

Each cube is pre-cut with a φ0.2" hole (0.8" deep) to accommodate seeds or cuttings without restricting growth, ensuring fast root expansion and easy transplanting.

2. Individually Wrapped for Moisture Retention and Protection

Every mini block is wrapped in a protective white film, offering several advantages:

• Minimizes algae growth by reducing light exposure to the growing medium.
• Prevents excessive moisture evaporation, maintaining ideal hydration.
• Improves handling and transport, ensuring blocks remain intact before use.
• Allows direct placement on larger grow cubes or slabs without removing the wrap.

This protective layer ensures longevity and efficiency, making the cubes ideal for large-scale propagation.

3. Excellent Rockwool Quality for Consistent Results

Unlike low-grade alternatives, UPuper CP S40 rockwool cubes are engineered for stability and durability:

 ✔ Maintains structural integrity – Does not crumble, shrink, or break apart.

 ✔ Supports manual and mechanical processing – Easy to handle and automate in commercial setups. 

✔ Free from pathogenic bacteria – Minimizes the risk of seedling infections. 

✔ Reusable and recyclable – Can be cut and mixed with soil to improve aeration.

This long-lasting and reusable material makes UPuper CP S40 an eco-conscious choice for both professional and home growers.

4. Easy pH Adjustment for Optimized Growth

One of the key advantages of rockwool propagation is its neutral pH that can be easily adjusted to meet plant-specific needs. UPuper CP S40 cubes offer:

• Adjustable pH levels between 5.5-6.5 for cannabis cloning and general propagation.
• Consistent water and nutrient distribution throughout the cube.
• Better pH stability compared to soil-based alternatives.

By pre-soaking the cubes before use, growers can optimize the pH balance for their crops, ensuring better nutrient uptake and faster growth.

5. Ideal for Various Growing Systems

UPuper CP S40 Mini Grow Blocks work seamlessly in diverse cultivation methods, including: ✔ Hydroponic systems – Can be placed directly in rockwool grow slabs for full hydroponic growth. ✔ Soil-based gardening – Transplants easily into soil while improving aeration. ✔ Greenhouse production – Commonly used for high-efficiency propagation of flowers and crops. ✔ Indoor gardening and microgreens – Provides a clean and controlled environment for young plants.

This versatility makes UPuper CP S40 an essential propagation tool for both commercial and home growers.

Specifications of UPuper CP S40 Propagation Cube

The UPuper CP S40 Mini Propagation Cube is designed with precision to ensure efficient and reliable plant propagation. Its excellent rockwool material and protective features make it a standout choice for both beginners and professional growers. Below are the key specifications that define its performance and quality.

• Dimensions: 1.5 x 1.5 x 1.5 inches (L x W x H)
• Hole Size: φ0.2" (Diameter), H0.8" (Depth)
• Grooves: None
• Protective Film: White film-wrapped
• Package: 2,250 pieces per carton

Each cube is precisely engineered for consistent sizing and performance, ensuring uniform plant growth across all blocks.

Application and Usage Tips

The UPuper CP S40 Mini Propagation Cube is ideal for a wide range of propagation needs. Whether you're starting seeds, cloning, or preparing for hydroponic or soil-based transplantation, this versatile tool supports healthy plant development. 

For optimal results, it’s important to follow the best practices when using the UPuper CP S40 Mini Propagation Cube. Proper care and handling ensure healthy seedling growth and a smooth transition into larger growing systems. Below are the key applications where these cubes excel and  some useful tips to get the most out of your propagation cubes.

How to Use UPuper CP S40 Mini Grow Blocks

1. Pre-Soak the Cubes
• Immerse in pH-balanced water (5.5-6.5) for at least 10-15 minutes before use.
2. Insert Seeds or Cuttings
• Place seeds or cuttings into the pre-made hole in each block.
• Ensure firm contact between the seed or cutting and the rockwool.
3. Place in Seedling Trays or Growing Area
• Set cubes in a flat tray or hydroponic setup for root development.
• Keep in a humid, warm environment for optimal sprouting conditions.
4. Maintain Proper Moisture Levels
• Keep cubes moist but not waterlogged to prevent root rot.
5. Transplant When Roots Develop
• Once roots extend beyond the cube, transplant into larger rockwool slabs or soil-based containers.

Best Practices for Maximum Growth

✔ Maintain humidity levels between 70-80% during propagation. 

✔ Use a nutrient solution with balanced pH for enhanced root establishment. 

✔ Avoid overwatering to prevent excessive saturation and mold formation. 

✔ Store unused cubes in a dry area to maintain quality and performance.