What are propagation plugs?
Cutting plugs are propagation media specifically designed for cloning plants—that is, generating new plants from a branch or shoot. Their purpose is to provide an optimal environment where the cutting can safely and quickly form roots.
They are made of porous, lightweight materials with good water retention capacity, which allows them to maintain constant humidity without suffocating the stem.
Why are they so important?
During the cutting process, the plant has no roots to absorb water, so maintaining the balance between humidity and oxygen is essential. A good plug ensures:
- High rooting rates.
- Healthy and uniform root development.
- Reduction of water stress.
- Compatibility with rooting hormones and mini greenhouses.
In addition, they facilitate subsequent transplantation, since it is not necessary to directly manipulate the roots.
What types of propagation plugs will you find?
- Jiffys or pressed peat plugs: inexpensive, biodegradable, and easy to use. When wet, they expand and provide a fluffy structure ideal for cuttings.
- Rockwool cubes: widely used in hydroponics. They offer excellent aeration and a firm structure, ideal for demanding cuttings.
- Propagation sponges: neutral, stable, and in some cases reusable materials. High aeration and ease of use.
- Pressed coconut plugs: Sustainable, they retain moisture well and improve rooting with less risk of fungus.
Which products stand out?
- Jiffy pressed peat: the most widely used by growers of all levels.
- Cutilene rock wool plug: firm and efficient, ideal for soilless systems.
- PluginPro Sponges: Made with organic material, very practical and clean.
- Monkey Klone tray: ready to use, pH and EC balanced, ideal for beginners.
Who are they ideal for?
Any grower who regularly takes cuttings or wants to start a small cloning project should have plugs. They're widely used by home growers, cannabis associations, and professional growers, both in soil and in hydroponic or coco systems.
They are also widely used for seed germination.
Frequently asked questions about cannabis propagation plugs
How long does it take for a cutting to root?
With a suitable plug and optimal conditions (temperature and humidity), a cutting can begin to root in 7-10 days, although some genetics may take longer.
Is it necessary to use rooting hormone with plugs?
It's not mandatory, but it's highly recommended. The hormone stimulates faster and more uniform root formation, especially when combined with good-quality plugs and a warm, humid environment.