Botanicare Cal-Mag Plus - 1 Gallon

Botanicare Cal-Mag Plus is a 2-0-0 calcium, magnesium, and iron plant supplement built to correct common deficiencies and support balanced nutrition through every stage of growth. This nutrient supplement focuses on the minerals plants rely on for steady development, especially in heavily fruiting plants and fast blooming annuals.

Cal-Mag Plus provides a precise balance of calcium, magnesium, and iron, with optimal ratios intended to keep plants performing consistently from early growth through flowering and fruiting. It is fortified with a proprietary blend of select trace minerals, giving extra mineral support where base nutrition can come up short. When calcium and magnesium levels stay on track, plants can maintain stronger plant structure and cell development, helping them stay sturdy as growth speeds up.

This formula is positioned to help prevent common deficiencies that show up quickly in fast-growing plants. It also targets better mineral movement by supporting optimal nutrient uptake, which can translate into more robust plant development across the growth cycle. In fruiting and flowering plant varieties, the same mineral support is tied to flower development and overall plant performance, with Cal-Mag Plus described as a way to help maximize yields in high-demand grows without turning your nutrition approach into something complicated.

Cal-Mag Plus is also highlighted for maintaining nutrient balance when running reverse osmosis (RO) water and for addressing the natural calcium draw associated with coco coir. That makes it a practical option for growers working with low-calcium media or setups where baseline water and media chemistry can leave plants short on key minerals. The same mineral support is connected to plant resilience, with Cal-Mag Plus described as contributing to vigorous vegetative growth and enhancing cell wall strength as plants build mass.

For crop-specific outcomes, Cal-Mag Plus is positioned to help prevent blossom end rot in tomatoes and peppers and to reduce tip burn in lettuce. It’s suited to soil, coco, and hydro systems, and it’s also noted as suitable for foliar application. If you want a straightforward calcium and magnesium support product that also includes iron and trace minerals, this is a good fit for growers aiming for consistent growth and higher-quality flowering and fruiting results, especially in RO or coco-based setups.

Warning – Important Safety Information

This product may cause mild skin irritation and eye irritation. Avoid unnecessary contact with skin, eyes, and clothing. Use only as directed.

General safety precautions

Read and follow all instructions on the product label and any accompanying documentation before use. Keep out of reach of children and pets. Do not ingest. Avoid breathing vapours, mist, or dust that may be generated during handling or use.

Wear appropriate personal protective equipment (PPE), such as protective gloves, long sleeves, long pants and closed-toe footwear. When there is a risk of splashing or airborne particles, use safety glasses or other suitable eye and face protection.

First aid – skin contact

IF ON SKIN OR HAIR: Remove contaminated clothing immediately. Rinse skin with clean water for several minutes, then wash with mild soap and water. If irritation or redness develops and persists, seek medical attention. Wash contaminated clothing before reuse.

First aid – eye contact

IF IN EYES: Rinse cautiously with clean water for several minutes, keeping eyelids open. Remove contact lenses if present and easy to do. Continue rinsing. If irritation persists, obtain medical advice.

First aid – ingestion and inhalation

IF SWALLOWED: Rinse mouth thoroughly with water. Do not induce vomiting unless instructed by a medical professional. Seek medical attention if you feel unwell.

IF INHALED: Move the person to fresh air and keep them comfortable for breathing. If coughing, breathing difficulty, dizziness or other symptoms occur, seek medical assistance.

Storage and handling

Store this product in its original closed container, in a cool, dry and well-ventilated area. Protect from extreme temperatures and direct sunlight. Keep container tightly sealed when not in use.

Avoid release to drains, natural waterways or outdoor soil. Dispose of unused product and empty containers in accordance with local regulations and the directions on the label.

Important: If medical advice is needed, keep the product label or container available. Always follow the specific instructions and safety recommendations provided by the manufacturer. This safety notice is intended as general guidance and does not replace official label directions or documentation.