Grodan Plant Starter Plugs are for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. The 1.5in size work perfectly in the white Grodan Starter Tray.

A-OK plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat).

Grodan Plant Starter Plug Sizes

A-OK Starter Plugs 1in/200 cubes per sheet/6000 cubes per case
A-OK Starter Plugs 1.5in/98 cubes per sheet/2940 cubes per case
A-OK Starter Plugs 2in/50 cubes per sheet/1500 cubes per case