Grodan Grow Chunks (2 cu.ft.) grower's choice 720 A high phosphorous mix of

A high phosphorous mix of bat and seabird guano plus earthworm castings

If you have a ventilation system

Additionally

A good harvest isn’t just expressed in terms of weight these days

The jacket of this double-ended lamp is made from quartz glass

Grodan Grow Chunks (2 cu.ft.) grower's choice 720 A high phosphorous mix ofGrodan Grow Chunks, 2cf bag, 3 BAGS PER CASE Super light and super versatile. Grow Chunks are a larger version (3 4" square) of the popular Grow Cubes. They are great for direct planting or for use as a filling around blocks in containers. They can be easily mixed with other media for increased aeration and added moisture holding capabilities.