2-PART NUTRIENT PACK - Two bottles is all you need from start to finish of your grow cycle! No need for complex nutrient schedules PRIME NUTRIENT BLEND ensures maximum absorption for your plants - thanks to scientifically formulated Iron (Fe) chelated with DTPA ULTRA CONCENTRATED - A little ENVY goes a long way; offering Greenhouse Grade nutrients for abundant harvests. GROW GREEN WITH ENVY to get the best out of your grow's genetics using ENVY's fortified NPK blend for continued quality growth. HIGH CALCIUM CONTENT 5% (Ca) for strong, tall, hardy plants