The blocks are individually wrapped in plastic on four sides to hold moisture and stop algae growth.
The base of each block is grooved for drainage. Do not remove the plastic wrap.
Grodan Delta Hugo Gro-Blocks
6.0 x 6.0 x 5.5 inch Growing blocks with 1.5 inch round hole for A-OK 36/40 Starter Plug.
Used for growing big plants, it is large enough to grow out most vegetables and some fruits for the entire lifespan of the plant.
Hand water or use with drippers or in Ebb and Flow Systems.
The blocks are individually wrapped in plastic on four sides to hold moisture and stop algae growth.
The base of each block is grooved for drainage. Do not remove the plastic wrap.