Liquid Fertilizer Supplement: Essential plant food blend with calcium, magnesium, and sulfur to support rapid growth, stronger roots, and enhanced flowering in all plant stages No Added NPK: Contains no added nitrogen, phosphate, or potassium, giving growers complete control over base nutrient levels in custom feeding programs All-Stage Use: Versatile formula suitable for seedlings, young starts, mature vegetative, and flowering plants, promoting health from root to bloom Pairs with Base Nutrients: Excellent companion to base nutrients like Buddha Grow and Buddha Bloom (sold separately); relied on by both home gardeners and professional growers Grow Smarter with Roots Organics: From first roots to full bloom, our nutrient solutions are made to work with your grow system, giving you healthy, reliable results every time Roots Organics CalMag is a pure liquid fertilizer supplement formulated with essential calcium, magnesium, and sulfur to support fast-growing plants and improve flowering performance. Designed to address common secondary nutrient deficiencies, this blend is suitable for seedlings, small plants, mature vegetable plants, and mature flowering plants. This potent formula is free of added nitrogen, phosphate, and potassium, giving growers complete control over their nutrient mix without disrupting the balance of their primary feeding programs. Whether you’re working with potting mix, garden beds, lawn care, or hydroponic systems, Roots Organics CalMag allows for flexible, precision supplementation to meet your specific plant needs. Ideal for heavy feeders and plants in rapid development stages, it delivers targeted support during critical growth windows. Use in combination with high-quality base fertilizers like Roots Organics Buddha Grow and Buddha Bloom for optimal results (sold separately). Roots Organics products are trusted by both home gardeners and professionals for delivering consistent, reliable results across a variety of cultivation methods and plant types. Whether you're growing indoors or outdoors, in soil or hydro, our nutrient solutions help support stronger, healthier, and increased plant performance - every step of the way.