Grotek Cal-Max

Correct deficiencies and pre-charge coco in one application

Grotek Cal-Max is built to bring nutrient-stressed plants back quickly, combining fast-acting nitrogen with calcium and chelated iron to re-green foliage and restore vigour after a deficiency, humidity spike or period of rapid growth. It is a particular favourite for coco coir growers, who use it to pre-charge fresh coco before planting and offset coir's naturally imbalanced cation exchange.

Because calcium becomes a limiting factor during high temperature or high humidity even when there's enough in the root zone, Cal-Max is also used as a foliar spray to get calcium moving through the plant when uptake through the roots is struggling to keep pace.

Key Benefits

• Corrects common nutrient deficiencies fast, via nitrogen, calcium and chelated iron
• Excellent for pre-charging coco coir before planting
• Usable as a foliar spray or root drench
• Helps plants cope with high temperature and humidity stress
• Chelated iron for lush, fast green-up

How to Use

• Soil/soilless: 5ml per 4L water, use as required
• Water culture: 5–8ml per 4L water, use as required
• Foliar: 10ml per 4L water, use as required

Technical Specifications