Growers Choice GC-315 w/ 4K organic Chemically weighted with stronger blue

Chemically weighted with stronger blue wavelengths

A calcium deficiency also reduces thickness of leaves and interferes with proper transpiration

and lighting recommendations

both the individual culture/species as well as the Final Blend

Roots Organics HP2 liquid seabird guano is a specially extracted natural source of organic phosphorus

Growers Choice GC-315 w/ 4K organic Chemically weighted with stronger blueGrowers Choice Horticultural Lighting has introduced their first digital 315 watt ceramic metal halide fixture. It utilizes advanced low frequency square wave technology and high efficiency 315 watt ceramic metal halide grow lamp. The GC 315 delivers the highest efficiency and closest spectrum to actual sunlight in the commercial horticultural industry.