VidaWool Rockwool Block 190 with Hole, 6 Inch x 6 Inch x 5.3 Inch - Case of 48 Select Rockwool Type:Block 512 No Hole, 8" x 8" x 8", Case of 18 but it is essential for

but it is essential for plant functions such as the formation of pollen tubes

The 'optimal range" and the "safe range" varies between different plants

It’s backed by a 5-year warranty

The mini-SCRUB is perfect for those who add expensive beneficial biological organisms to their grow media

Do not water heavily immediately after adding worms to the soil

VidaWool Rockwool Block 190 with Hole, 6 Inch x 6 Inch x 5.3 Inch - Case of 48 Select Rockwool Type:Block 512 No Hole, 8" x 8" x 8", Case of 18 but it is essential forVidaWool. Cultivate With Confidence VidaWool blocks provide the space and uniform water and nutrient distribution they need to continue thriving in their second stage of life. Equipped with a UV protection liner and Hydro Xtend water dispersion technology, VidaWool blocks are intelligently designed to deliver healthy, even root zones and consistent crop performance. Mineral wool growing media helps to give more steerability to the grower and