Grodan Gro-Wool Medium Water Absorbent Granulate Rockwool, 3.5 cu ft eligible-for-discount It can be applied directly

It can be applied directly to fruits and vegetables up to day before harvest

• 2 HP (10 FLA

intense light coverage with its 8 passively cooled LED bars allowing you to use it in low rooms

From the household hobbyist to the commercial level grower

Increases Phosphorus uptake

Grodan Gro-Wool Medium Water Absorbent Granulate Rockwool, 3.5 cu ft eligible-for-discount It can be applied directlyGranulated rockwool can be used alone or as an amendment to organic based mixes. For example, the addition of water absorbant granulate to peat mixes at 25 50% volume increases water holding capacity and aeration, improving plant growth and shelf life. The water repellent granulates are superior substitutes for aerators such as perlite or Styrofoam. The granulate is prilled for easy mixing. Granulated rockwool as potting mix: When you use granulated