Hydroponic Mineral Rockwool Starter Cubes Plugs 1.5" x 1.5" for Hydroponic, Seedlings, Cloning and Soilless Growing

Designed for seed and cutting propagation prior to "blocking on" into larger growing blocks.

Rockwool plant starting plugs feature a slit for easy insertion of rooted cuttings

Fit perfectly into the holes of any standard Rockwool blocks

Fit perfectly inside the Grodan Insert trays for added support

Direction for Use

Soak and flush with PH 5.5 water

Add plant food to water when growing plants