8.5
MI0512 Hydroponics
These rockwool starter plugs help growers start seeds and clones in a reliable medium. The sheets provide a stable environment for early root development
1 system on this hub
Sets Affordable Rockwool grow cubes
8.5
Standard sizing
Each plug measures 1.5 in for standard tray fit.
Sheet format
The 28-plug sheets keep your workspace organized.
Root support
Rockwool fibers hold moisture and air for young roots.
Notes from buyers
The 1.5 in size fits perfectly in my standard propagation trays.
These rockwool cubes stay hydrated and made cloning my plants much simpler.
I like how the 28 plugs stay together in one sheet for better organization.
Propagation and Cloning Standards
These rockwool grow cubes are designed for the early stages of plant life. They provide a consistent texture for seed starting and taking cuttings.
- 1.5 in starter plugs
- Rockwool grow cubes
- 28 plugs per sheet
- Small size format
- Propagation kit compatibility
- Cloning medium support


In the range
The range includes Affordable, Rockwool grow cubes — the types these titles actually list.
Build details
Titles in this MI0512 set call out the build that shows up in Small rockwool starter plugs for propagation.
The intended job
MI0512 system here match Affordable, Rockwool grow cubes as the titles describe them.
What stands out
Compare MI0512 models on Affordable, Rockwool grow cubes. Examples: Small rockwool starter plugs for propagation.
MI0512 Questions
What is the size of each plug?
Each rockwool starter plug is 1.5 in.
How many plugs come in this set?
This set includes 1 sheet containing 28 individual plugs.
What are these cubes used for?
They are used for propagation, cloning, and starting seeds in hydroponic setups.
Are these suitable for cloning?
Yes, these are designed as part of propagation and cloning kits.