Green House Feeding CalMag is a water-soluble calcium and magnesium supplement that also contains nitrogen. High solubility makes the nutrients quickly available to the plant.

The product is developed especially for use with soft water (reverse osmosis, rainwater) and in hydroponic systems, where calcium and magnesium are naturally scarce. It corrects and prevents deficiency symptoms and supports healthy growth and fruit quality.

CalMag contains no chlorine, sodium or heavy metals, and is suitable for both watering and foliar spraying. It works together with the Green House Feeding base nutrients or as a standalone supplement.

Total nitrogen (N): 13.5 %

Calcium oxide (CaO): 16.7 %

Magnesium oxide (MgO): 6.0 %

Type: Water-soluble calcium-magnesium supplement

Phase: Whole growth cycle (esp. soft water / hydro)

Pack size: 50 g