Product Review
CalMag & Iron is a specialized calcium, magnesium & iron, plant supplement designed to compensate for deficiencies in some commercial and hydroponic nutrient programs. CalMag & Iron also compensates for the natural calcium draw of coco coir fiber. CalMag & Iron provides a precise balance and optimal ratios of the calcium, magnesium and iron that are critical throughout all stages of growth, especially in heavily fruiting plants and fast blooming annuals. CalMag & Iron is fortified with a proprietary blend of select trace minerals to help maximize yields in fruiting and flowering plant varieties, prevent blossom end rot in tomatoes and peppers and reduce tip burn in lettuce. When used in combination with nutrient solutions CalMag & Iron functions as a catalyst to increase the uptake of essential minerals.
- Strength for Every Stage: Humboldts Secret supplement with cal mag for plants delivers calcium, magnesium, and chelated iron to prevent deficiencies. It fortifies stems, improves leaf color, and supports flowering and fruiting plants for vigorous, healthy growth in any type of garden.
- Fast-Acting Plant Recovery: Our balanced formula with calmag and chelated iron targets issues caused by nutrient imbalances, helping plants recover quickly. It boosts photosynthesis, nutrient transport, and root strength in vegetables, flowers, and herbs grown indoors or outdoors.
- Maximum Absorption Power: Using our cal-mag for plants blend with added iron improves uptake efficiency, ensuring these essential minerals are fully utilized. It supports lush vegetative growth and abundant blooms, delivering consistent results for home or commercial growers.
- Reliable Across All Setups: Humboldts Secret cal mag fertilizer with iron works in hydroponics, soil, and container gardens. It strengthens plant structure, enhances fruit quality, and ensures balanced nutrition in indoor and outdoor systems for dependable, healthy harvests.
- Focused on Fruiting Success: Our formula with calcium and magnesium for plants plus chelated iron benefits crops in coco coir or reverse osmosis water. It helps prevent blossom end rot, promotes firm fruit set, and improves nutrient absorption for strong, productive plants in challenging conditions.
