Grodan Rockwool Propagation Plugs in french trays offer a unique and affective solution to your germination needs. Specifically designed for sowing seeds, Rockwool Propagation Plugs provide you with a sterile and specially treated porous substrate that aids in rapid and even root development. The plugs can be either manually transplanted or used in automated transplant machines.
What you get
Please note that French trays can be reused after removing seedings by sterilizing them. You can then purchase the Rockwool propagation plugs seperately.
The improved shape and depth of the seed hole ensure that each seed rolls easily into the centre of the plug, giving a lower risk of dehydration and allowing the seed to be covered with an even layer of vermiculite.
The seedlings root quickly and anchor well into the centre of the plug leading to greater uniformity in plant development and fewer twisted seedlings.
The new technology facilitates superior water and air management, which results in a better distribution of water and EC throughout the entire plug, resulting in better root formation and better, more uniform plant growth.
The plugs can be removed from the trays and replaced with ultimate precision during selection. The plug height of 27 mm creates a larger volume that is beneficial for plant growth. During selection, fewer plants will be lost and the plants for transplantation into blocks maintain their maximum quality.
The larger volume offered by the plug gives higher absolute water content in the plugs leading to a lower irrigation frequency. For propagators this translates to sustainable and more efficient use of water and nutrients and lower costs.
Posted by Grant on 22nd Oct 2014
The beauty of the product is even though the tray is quite large and would be idea for commercial use, for the home grower it fortunately is a bit large. but I cut the tray into 20 pug sections ideal ! Seed germination of maize, tomatoes and lettuce occurred in 3 days with a single deep soak of the plugs.
Posted by Hennelie on 4th Sep 2014
I am very impressed with this tray and await my planted seeds germanation impatiently. The removable rockwool plug makes transplanting so much easier. Will no just purchase the plugs in future.
Posted by Rob Estran on 25th Aug 2014
The French tray is easy to use and my tray floating on a pond inside a hot house has germinated COS lettuce seed in a week.