Grodan® Stonewool A-OK Starter Plugs™ 1.5 slab 98ct Ona One of the most concentrated

One of the most concentrated enzyme products on the market

It is equally suited for hydroponics

Liquid organic kelp

it immediately knocks out harmful organisms that could damage turf

can also be used during the first week of flowering to support the start the bloom cycle

Grodan® Stonewool A-OK Starter Plugs™ 1.5 slab 98ct Ona One of the most concentratedA OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro Blocks. A OK Starter Plugs come labeled with instructions in a shrink wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.