VIVOSUN 1" Rockwool Cubes (200 Plugs) for Seed Starting & Cloning | Propagation Media

VIVOSUN Rockwool Cubes for Easy Propagation

VIVOSUN 1-inch rockwool cubes offer a clean, reliable medium for seed starting, cuttings, cloning, and plant propagation. Manufactured from natural minerals—basalt, coke, limestone with a trace of iron slag—these fibers are melted, spun, and compressed into consistent plugs. The result is a lightweight, inert substrate that maintains a neutral presence in your grow setup while providing a stable platform for early root development.

Designed with real-world growing in mind, these cubes balance moisture retention with aeration, helping root systems access oxygen while staying hydrated. The included sheets are easy to handle, cut to fit, and observe, making it straightforward to monitor early growth and transplant when roots emerge.

Why growers choose VIVOSUN rockwool cubes

• High porosity, strong drainage: Approximately 95% porosity creates ample air for roots and reliable drainage to prevent oversaturation.
• Sterile and inert: The material won’t harbor harmful fungi, helping keep environments clean and predictable.
• Moisture retention with flexibility: Holds water for longer periods while remaining easy to re-wet, supporting steady hydration and nutrient availability.
• Easy to use: Light, fluffy cubes with a pre-formed hole for seeds or cuttings; cuts can be made to fit different setups.

What you get

• 4 sheets of rockwool, 50 cubes per sheet (200 total plugs)
• Simple observation of root growth and easy transfer to other media as roots develop
• Compatibility with gardens, hydroponics, propagation, cloning, and cuttings

Usage tips

• Moisten cubes evenly and use with seeds or cuttings placed in the pre-made hole
• Monitor moisture levels to keep the cube damp but not waterlogged
• Transplant the cube to your chosen medium once roots begin to show and growth accelerates

In everyday setups, these rockwool plugs can support reliable germination on a sunny windowsill, efficient cloning in a controlled grow area, or quick starter plugs for indoor gardens. They offer a practical balance of structure, moisture control, and observability without promising guaranteed outcomes.