Green Planet Pro Cal 5LPro Cal is the ultimate in calcium-magnesium supplementation and should be used on a regular basis with your Green Planet nutrient program. Pro Cal is used throughout the vegetative and flowering stages and ceases use in the last week of the flowering stage which is usually a flush week incorporating REZIN and water.Key PointsThickens cell wallsNoticeable size increaseHelps form calcium pectateImproved enzyme functionFully chelated ironCoco coir approvedAn important source of magnesiumPowerful formulationUse: 1.2ml per litre throughout the vegetative stage and moving up to 1.8mls per litre for the flowering stage stopping prior to the flush week.
