GreenPlanet Pro Cal – Calcium, Magnesium & Iron Supplement
GreenPlanet Pro Cal is a premium calcium, magnesium and iron supplement designed to support vigorous plant growth by correcting and preventing deficiencies in three of the most important secondary nutrients. Ideal for hydroponics, coco coir and soil, Pro Cal provides readily available calcium, magnesium and fully chelated iron to help plants develop stronger cell walls, healthier foliage and increased growth rates throughout the vegetative and flowering stages.
Fast-growing plants have an exceptionally high demand for calcium and magnesium. When these nutrients become limited, growth slows, stems weaken and deficiencies quickly begin to appear. GreenPlanet Pro Cal delivers a balanced supply of these essential nutrients in highly available forms, allowing plants to maintain rapid development while supporting overall health and productivity.
Calcium plays a vital role in building strong cell walls by forming calcium pectate, the structural compound responsible for plant strength and rigidity. Healthy calcium levels promote thicker stems, stronger branches and improved structural integrity, allowing plants to support larger flowers and heavier fruit loads. Calcium also assists with root development and efficient nutrient movement throughout the plant.
Magnesium is the central element of the chlorophyll molecule, making it essential for photosynthesis and healthy green foliage. By maintaining adequate magnesium levels, Pro Cal supports efficient energy production, improved enzyme activity and vigorous plant growth. Fully chelated iron further enhances chlorophyll production while remaining readily available across a wide range of pH levels, helping prevent yellowing caused by iron deficiencies.
GreenPlanet Pro Cal is particularly beneficial for growers using coco coir, where calcium and magnesium deficiencies are more common due to the natural characteristics of the growing medium. Regular supplementation helps maintain balanced nutrition, ensuring consistent plant performance from propagation through to harvest.
Suitable for hydroponics, coco coir and soil, GreenPlanet Pro Cal is applied at 1.25mL per litre as part of your regular feeding program. Whether preventing deficiencies or supporting rapid plant growth, Pro Cal provides the essential minerals required to produce healthier plants, stronger structure and improved overall crop performance.
Key Benefits
- Premium calcium, magnesium and iron supplement
- Helps strengthen plant cell walls
- Supports the formation of calcium pectate
- Provides fully chelated iron for maximum availability
- Excellent source of magnesium
- Encourages faster, healthier growth
- Supports chlorophyll production
- Improves enzyme function
- Helps increase plant size and vigour
- Ideal for coco coir growing systems
- Suitable for hydroponics, coco coir and soil
Recommended Applications
- Vegetative growth
- Flowering
- Hydroponics
- Coco coir
- Soil
- Deficiency prevention
Application Rate
- 1.25mL per litre throughout the vegetative and flowering stages as required.
