A-OK Starter Plugs™ for starting seeds and rooting of
cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs™ or planting.
Grodan Rockwool or stone wool is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks or slabs. Rockwool’s superb quality, fiber structure and pathogen-free content enables optimal root development for unrivaled growth and production.
Grodan has the highest density on the market, which translates into the greatest structural integrity for increased and longer oxygen holding capabilities. Low density rockwool collapses with the weight from water and plants, squeezing out air pockets and decreasing oxygen retention. High density gives better insulation value — especially important during germination and rooting of cuttings. Higher density also improves the wicking and dispersion of moisture and nutrients, enticing roots into more areas of the medium, and therefore increasing nutrient fueled sites for premium plant production.
Grodan supplies cultivation solutions that comprise a combination of advice, support and a clean and controllable substrate. This results in the best basis for the cultivation of safe, healthy and high-quality vegetables and plants. For over fourty years, Grodan has been at the cutting edge in the cultivation of safe, healthy and high-quality vegetables and plants. Their A-OK starter cubes are the most widely used media for starting clones. Their rockwool growing slabs are primarily used by commercial tomato, cucumber and pepper farmers, but their Delta series of rockwool blocks are very popular among growers of all sizes.
These cubes are repackaged for your convenience.