100 Rockwool Plug Inserts
The Grodan rockwool plugs can be inserted into polystyrene seedling trays, such as this French tray.
Ideal for seed propagation. The rockwool plug has been specially treated to absorb water, unlike many other rockwool products in the market today, which at first tend to repel water.
Size of each plug is approximately 20mm in diameter and 25mm high
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Planting ease
Plugs make for accurate planting with maximum germination results.