Grodan Gro-Wool Absorbent Granulate growers-edge-illuminated-microscope-60x-100x They feature the same thickness

They feature the same thickness and design as their white trays

6 ft temperature probe is accurate to within 2°F

Pro-Mix® HP Biofungicide™ + Mycorrhizae™ is suitable for a wide variety of horticultural plants

This kilning process is very similar to popping popcorn and produces a growing media that is sterile and has a neutral pH of 7

Grodan Gro-Wool Absorbent Granulate growers-edge-illuminated-microscope-60x-100x They feature the same thicknessGranulated rockwool works great on its own or mixed with other loose media, such as expanded clay rocks or coconut fiber. If planting in containers outdoors, water absorbent granulate is the best medium of choice.