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Greengrow Upuper Mini Propagation Block - CP S40 - Case (2250 Pcs)


Product Description
UPuper®CP S40 mini propagation blocks are excellent for starting bigger seeds or cloning and are easily transplanted to larger stone wool slabs once roots are extended to larger areas for the root system.
Usually used with rock wool grow cubes or grow slabs. It's popular for rose plant cuttings or cannabis cloning.
Each block is individually wrapped in white plastic, for better handling and also can be used with a seedling tray (flat).

Product Specification
Single size: 1.5 *1.5 *1.5 (L*W*H(inch))
Hole Size: φ0.2",H0.8"
Grooves: Don't have
Film: Have white film wrapped.
Package: 2250 pcs/carton

Product Specification (Property: Value)

  • Bond strength: NA
  • Sink time: <10s
  • Water absorption rate: >=900%
  • Organic matter content: <1.5%
  • Content of toxic and harmful heavy metals: Not detectable levels
  • Meet GMP Hygiene requirements (Bioburden test): No microorganisms

Product Advantage
1. The shape and firmness of the rockwool plugs are of a quality that makes processing significantly easier, whether that processing is mechanical or manual.
2. Stable enough, won't degrade during use, and save cleaning costs.
3. Mini grow blocks are individually wrapped in white plastic to minimize algae growth,prevent excessive evaporation of moisture.
4. Multiple uses.Remove wrapping and transplant into traditional planters and growing mediums,or keep the packaging and put it directly on top of rockwool grow block or grow slab.
5. Does not contains any pathogenic bacteria, which can reduce the risk of virus infection in seedlings.

Mini-blocks sit in a tray (flat) without support for easy starting of seeds and cuttings.Used for cannabis cloning or rose plants cutting.

Practice TIPS
1. You need pre-soak them before use.
2. Adjust pH in the range of 5.5-6.5 for cannabis cloning.
3. Rockwool mini blocks can be reused or recycled for another planting. Plant leafy vegetables after disinfection. Remove wrapping, cut it and mix it with the soil to improve the air permeability of the soil.

Greengrow Upuper Mini Propagation Block - CP S40 - Case (2250 Pcs)



  • What's the advantages of hydroponic culture?

    Hydroponic vegetables provide nutrients and water directly to the roots through nutrient solutions, making their nutrient supply more sufficient, balanced, and rapid. Vegetables grown in this way have yields several times or even more than ten times higher than those grown in traditional soil or substrate cultivation.

  • What's the advantages of rock wool cultivation?

    Agricultural rock wool cultivation is the most advanced cultivation technology in modern agriculture. From cultivation facilities to environmental control, it can be monitored and regulated according to the needs of crop growth and development. Therefore, agricultural rock wool cultivation has advantages that traditional soil cultivation cannot surpass.

  • I'm a business grower, can I get a discount?

    Yes, we offer wholesale discount for business growers. If you're shopping in volume, please contact us for the wholesale price and any other discount programs that you may be eligible.