Botanicare Cal-Mag Plus - 5 Gal

Calcium and Magnesium Support for Larger Gardens - 5 Gal

Soft or reverse osmosis water, coco coir and low-calcium media often leave plants short of calcium and magnesium. Botanicare Cal-Mag Plus adds both minerals along with iron, so you can correct deficiencies and keep your nutrient program balanced. The guaranteed analysis lists nitrogen, calcium, magnesium and iron.

The 5 Gal container suits growers who supplement at nearly every watering. It fits regular indoor gardens, multi-reservoir hydroponic systems and commercial rooms that would otherwise run through small bottles quickly.

Key Features & Benefits

• Calcium, magnesium and iron — supports cell structure and helps prevent common deficiencies.
• Suits RO water and coco coir — replaces minerals these water sources and media lack.
• Low dose rate — 1 tsp (5 ml) per gallon of water makes a large container last.
• Foliar option — can also be applied as a spray at 10 – 15 ml per gallon.
• Works with nutrient programs — used alongside Botanicare nutrients or your preferred program.

Who Should Use Botanicare Cal-Mag Plus

Growers using reverse osmosis water, coco coir or low-calcium media, and anyone growing heavy-feeding fruiting or flowering plants in hydroponic, soil or container systems. Home and licensed commercial growers can both use it.

About Botanicare Cal-Mag Plus

Botanicare Cal-Mag Plus is a liquid calcium and magnesium supplement. Its guaranteed analysis is nitrogen 2.0%, calcium 3.2%, magnesium 1.2% and iron 0.1%. Botanicare publishes a feed sheet for it, CalMagFeedSheet.pdf.

Frequently Asked Questions

Q: How much Cal-Mag Plus do I add?
A: Add 1 tsp (5 ml) per gallon of water. Mix well, then adjust pH before applying.

Q: What pH should I target?
A: Adjust the solution to a pH of 6.2 – 7.0 before application. Check the pH after mixing, because additives shift it.

Q: Can I use it as a foliar spray?
A: Yes. The label rate for foliar use is 10 – 15 ml per gallon. Shake well before each use.

Q: Why do RO water growers need a calcium and magnesium supplement?
A: Reverse osmosis removes most dissolved minerals, including calcium and magnesium. Adding Cal-Mag Plus puts them back so plants are not short of them.

Q: What does guaranteed analysis mean?
A: It is the minimum nutrient content the maker states on the label, given as a percentage. Here that covers nitrogen, calcium, magnesium and iron.

Q: Can I use it every watering?
A: The label says to use it with every watering as needed. Mix thoroughly and adjust pH each time.