Bloom City Cal-Mag Fertilizer 32 oz — Professional Grade Ultra-Pure Liquid for Stronger Stems

Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer (32 oz) is a concentrated liquid supplement that supplies readily available calcium and magnesium to support sturdier stems and more vibrant leaves in indoor, outdoor, and hydroponic plants.

This 32-ounce bottle delivers a purified, easy-to-mix Cal‑Mag formula designed to integrate with routine feeding schedules. It’s formulated to be simple for beginners yet precise enough for experienced growers who want to correct or prevent calcium and magnesium shortfalls. The product dissolves cleanly in feed water and is suitable for houseplants, container gardens, greenhouse crops, and hydro systems.

How do I use this Cal‑Mag supplement in my regular watering routine?

Mixing and dosing are straightforward — add a small measured amount to each gallon of feed water so it complements, rather than replaces, your base nutrient or fertilizer. Follow the recommended range and adjust slightly based on plant response and growing conditions.

• Add 2–5 ml per gallon of feed water, depending on plant needs.
• Use with your normal fertilizer schedule; do not exceed recommended concentrations.
• Stir or shake to ensure full dissolution before watering containers or hydroponic reservoirs.

What benefits will I notice after adding Bloom City Cal‑Mag?

Supplementing with calcium and magnesium supports structural and metabolic functions tied to healthy growth. Users commonly observe stronger stems, fewer leaflet distortions, and more uniform leaf color when crops receive balanced Cal‑Mag levels.

• Calcium supports cell wall strength and stem integrity.
• Magnesium aids chlorophyll function and even leaf coloration.
• Helps maintain consistent uptake of other nutrients when used correctly.

Can I use this in hydroponics, soil, and potted plants?

Yes — the liquid formulation was developed for versatile application across different systems. It works in soils, soilless mixes, and hydroponic reservoirs when mixed into the feed solution at recommended rates.

• Safe for hydroponic reservoirs when monitored for EC and pH.
• Compatible with container and in-ground watering once diluted.
• Adaptable for both indoor grow tents and outdoor garden beds.

How do I know if my plants need Cal‑Mag supplementation?

Plants can show subtle signs of calcium or magnesium shortages such as localized leaf discoloration, distorted new growth, or weaker stems. Testing or observing plant symptoms alongside regular feeding helps determine if Cal‑Mag addition is beneficial.

• Look for pale or interveinal yellowing on older leaves (magnesium signs).
• Check for distorted or slow-developing new growth (possible calcium need).
• Consider water quality and base nutrient composition — low-calcium water often benefits from supplementation.

Who is this for? Bloom City Professional Grade Ultra Pure Cal‑Mag Fertilizer is intended for home gardeners, hobby growers, and commercial cultivators who want a reliable, concentrated calcium and magnesium supplement. It fits growers who use tap or reverse-osmosis water, those integrating hydroponic systems, and anyone seeking an easy-to-measure boost to support plant structure and leaf quality. This product is not a complete fertilizer; use it alongside a balanced feeding program and monitor plants to tailor dosing for optimal results.

Features at a glance:

• Easy mixing directions: add 2–5 ml per gallon of feed water for routine applications.
• Nutrient-focused formula: provides bioavailable calcium and magnesium for stems and leaves.
• Versatile use: suitable for indoor, outdoor, and hydroponic growing systems.
• Accessible for all skill levels: simple to add to any plant care routine.