Jack's Elementals Calcium Chloride Dihydrate | 25lb

Precision Calcium Correction for Growing Media and Foliar Deficiencies, 25lb

A calcium deficiency flagged by a tissue or media test needs a targeted fix, not a general-purpose feed. Jack's Elementals Calcium Chloride Dihydrate corrects a calcium deficiency detected by growing media or foliar analysis, most commonly used as a foliar application.

25lb, 100% soluble calcium source, foliar or media use.

Key Features & Benefits

• 100% soluble, plant-available calcium — corrects calcium deficiencies identified by growing media or foliar analysis.
• Commonly used as a fine-mist foliar application — delivers calcium directly to foliage for a faster response than root uptake alone.
• Part of the Jack's Elementals precision line — built for professionals dialing in specific nutrient gaps rather than a general feeding program.
• Compatible with many growing systems — flexible enough to layer into an existing fertility program.

Who Should Use This Calcium Chloride Dihydrate

This fits growers who've identified a specific calcium deficiency through media or foliar testing and want a precise, fast-acting correction rather than a broad-spectrum fertilizer.

About Jack's Elementals

Jack's Elementals is JR Peters' single-nutrient precision line, built for professionals who want to dial in specific nutrient gaps with extreme precision as part of an existing fertility program.

Frequently Asked Questions

When should I use Calcium Chloride Dihydrate?

Use it once a growing media or foliar analysis has detected a calcium deficiency, since this is a targeted correction product rather than a general-purpose fertilizer. Applying it based on test results helps avoid over-correcting a nutrient that's already adequate.

How is this product typically applied?

It's most commonly used as a foliar application, delivered as a fine mist spray directly onto plant leaves for faster calcium uptake than a soil or media drench. Foliar application is particularly useful when a deficiency needs correcting quickly.

Is this calcium source fully available to the plant?

Yes, JR Peters states this Calcium Chloride Dihydrate is 100% soluble and plant-available, meaning the calcium isn't tied up in a form the plant has to work to access. That solubility is part of why it's suited to precise, analysis-driven corrections.

What is the Jack's Elementals line built for?

Jack's Elementals is JR Peters' precision single-nutrient line, designed for professionals who want to dial in specific nutrient gaps with extreme precision rather than relying on a broad all-in-one formula. Calcium Chloride Dihydrate is one component of that line.