Cultiwool CRB Large Propagator Plugs

Give your cuttings and seedlings the absolute best start in life with Cultiwool CRB Propagator Plugs. Specifically engineered for the delicate propagation stage, these premium stonewool starter plugs are designed to accelerate root strike and boost initial vegetative vigour, helping young plants establish a dense, resilient root network right from the start.

Arriving pre-arranged in an unrestrictive, commercial-grade propagation tray, Cultiwool provides a highly uniform, clean, and hassle-free environment. This allows you to monitor root development across your entire canopy with ease, ensuring each plant progresses at an identical pace.

Core Cultivation Advantages:

• Elite Air-to-Water Ratio: Cultiwool’s unique rockwool fibre formulation delivers a precise balance of high structural airflow and moisture retention. This highly aerated matrix prevents root suffocation and dampening-off, providing roots with consistent access to vital oxygen.

• Intelligent Water Buffering: The advanced structural design allows a targeted amount of water and nutrient solution to pool safely at the very bottom of the plug. This unique feature ensures your emerging root tips have constant, uninterrupted access to hydration without waterlogging the upper stem.

• Seamless, Zero-Shock Transplanting: These propagator plugs are shaped to fit neatly and flush into larger Cultiwool growing blocks. When your young plants outgrow their starter plugs, you simply insert them directly into the larger block—completely eliminating transplant shock and keeping your root systems intact.

• High-Performance Durability: Made from reliable, durable, and highly resistant mineral wool fibres that do not degrade, sag, or lose their shape during heavy watering cycles.

Available Tray Configurations

Choose the ideal plug size and density tailored to your specific propagation schedule:

• 50 Plugs Per Tray (Micro-Sized):

  • Plug Dimensions: 25 mm x 25 mm x 40 mm

  • Best For: High-density seed popping, delicate micro-cuttings, and space-saving propagation.

• 77 Plugs Per Tray (Standard Sized):

  • Plug Dimensions: 35 mm x 35 mm x 40 mm

  • Best For: Standard leafy cuttings, robust seeds, and plants requiring a longer vegetative runway before transplanting.

Step-by-Step Propagation Guide:

Technical Specifications