50 Cubes Grodan Rockwool Sheet Block Propagation Cloning Raising

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Color: Tan Material: Rock wool Size: 25x25x40mm
Function: 1. Improved homogeneity 2. Optimum robustness and flexibility 3. Ideal air/water balance 4. Consistent shape of the seed hole 5. Identically shaped plugs 6. Root development through the entire plug
Feature: 1.Made from molten rock spun into cotton candy-like fibers and then compressed into cubes. 2.After high temperature treatment, non-toxic and sterile. 3.The bulk density is small, the texture is light, and the porosity is large. 4.Good air permeability, strong water absorption and good drainage. 5.Suitable for the cultivation and colonization of all kinds of plants. 6.Great choice for soilless planting.
Instructions: 1. Preparing and planting in rock cubes. 2. Soak in water for 2 minutes. 3. Take out from the water and place for about 15minutes. 4. Put seeds into the hole of cubes. 5. Spray water after seed inserted. 6. Place it in a seed tray.
Package Included: 50pcs x Rock wool cubes
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