Jack’s 15-5-20 (25lbs) Pulse one environmental monitor Grow Chunks are a larger

Grow Chunks are a larger version (3/4" square) of the popular Grow Cubes

The specially deployed GC-3K full phase spectrum fills the lack of the main photoreceptors and pigments outside the 660-450nm range

Representing the pinnacle of biological inoculants

As the core of the New Millenium Fertilizer System

Comes with holster—attach it to your belt and you'll never lose your pruners again

Jack’s 15-5-20 (25lbs) Pulse one environmental monitor Grow Chunks are a largerPrefer Tap Water? Allow your plants to drink up this formula designed to provide all the macro, secondary and micro nutrients in a one part system. Specifically formulated for tap, city or well water types with slightly higher alkalinity & pH. This combination of nutrients will lower pH over time while including the extra soluble calcium, magnesium and the right balance of micronutrients.