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Plant Starter Grow Plug Cubes

INORGANIC & STERILE GROWING MEDIUM: CastleGreens rockwool grow cubes is made from natural rock by high temperature melting, spun into fiber, and then compressed into 1x1x1 inch soft cubes, blocks, or slabs. Under the super high temperature, it is an Inorganic & Sterile growing medium, ensure the plant is reliable

PROVIDE THE PLANTS A GOOD ENVIRONMENT: Porosity of more than 95%, water and air are evenly distributed. The nutrient solution reached the root system of the crops through rockwool, good for plant growth. The water absorption rate of mass is above 800%. Water, fertilizer performance is good. No other devices are needed during cultivation

WIDELY USED, EASY TO USE: Great for rooting, cuttings, clone plants, germination start seeds and more. Strip, block for easy handling, can also be transplanted. Vegetables and flowers grown with rockwool, high yield, good quality, less pollution


  • quantity: 50PCS
  • Size: single 3X3X4CM
  • Material: Rock wool
  • Material: rock wool