Jack's Elementals® Calcium Chloride Dihydrate 1lb

Jack's Elementals® Calcium Chloride Dihydrate 1lb — Soluble Calcium Supplement

Jack's Elementals® Calcium Chloride Dihydrate is a highly pure, rapidly soluble calcium source formulated for use in hydroponic and soil growing environments where calcium supplementation is required. Calcium is a critical secondary macronutrient that plays an essential role in cell wall formation, cell division, enzyme activation, and the structural integrity of plant tissue. Calcium deficiency is one of the most common nutrient imbalances encountered in indoor growing environments, particularly in rapidly growing plants with high metabolic demands.

The dihydrate form of calcium chloride dissolves quickly and completely in water, making it an ideal precision supplement for growers who need to fine-tune their calcium levels in nutrient solutions without introducing unwanted companion ions from less pure calcium sources.

Key Features & Benefits

• High Solubility: Calcium Chloride Dihydrate dissolves rapidly and completely in water, providing immediate calcium availability in hydroponic nutrient solutions and soil drench applications without sedimentation or system clogging.
• Targeted Calcium Supplementation: Provides a direct source of calcium ions for rapid correction of calcium deficiency symptoms including tip burn, blossom end rot, necrotic leaf margins, and distorted new growth.
• Cell Wall & Structural Support: Calcium is fundamental to the formation of pectin cross-links in plant cell walls. Adequate calcium levels support firm, structurally sound plant tissue that resists mechanical damage and is less susceptible to pathogenic invasion at wound sites.
• Enzyme Activation: Calcium acts as a cofactor for numerous plant enzymes and is involved in cell signaling pathways. Sufficient calcium supports normal metabolic function and stress response capacity.
• Precision Dosing — 1lb Format: The 1lb package is ideal for growers who need precise, measured supplementation rather than bulk quantities, making it suitable for both small-scale operations and targeted correction applications in larger grows.

Who Should Use This

Jack's Elementals® Calcium Chloride Dihydrate is ideal for hydroponic growers who build their own custom nutrient formulas and need a high-purity calcium source to balance their nutrient solution. It is also valuable for soil growers experiencing calcium deficiency symptoms, particularly in fast-growing plants during periods of vigorous vegetative growth or early flowering. Commercial indoor cultivation facilities and research growers who require precise elemental inputs will appreciate the clean, highly soluble calcium chloride dihydrate form.

Compatibility

Compatible with most hydroponic nutrient formulas. Note that calcium chloride introduces chloride ions alongside calcium — in most growing environments this is not a concern at standard application rates, but growers with chloride-sensitive crops or very low chloride tolerance in their water should consider this when calculating total chloride load. Avoid mixing concentrated calcium chloride solutions directly with concentrated sulfate or phosphate solutions to prevent precipitation — always dilute in water before combining.

Frequently Asked Questions

What are the signs of calcium deficiency in plants?

Common calcium deficiency symptoms include tip burn on leaves, necrotic (dead) leaf margins on young leaves, distorted or cupped new growth, blossom end rot in fruiting crops, and soft or weak stem tissue. Calcium deficiency typically appears first on the youngest, fastest-growing plant parts.

How does Calcium Chloride Dihydrate differ from calcium nitrate?

Calcium Chloride Dihydrate provides calcium alongside chloride ions, while calcium nitrate provides calcium alongside nitrate (nitrogen). The choice between the two depends on your nutrient formula needs — if additional nitrogen is not desirable, calcium chloride is the preferred option for targeted calcium correction.

Can I use this product in soil as well as hydroponics?

Yes. Calcium Chloride Dihydrate can be dissolved in water and applied as a soil drench or foliar spray in soil-based growing environments. Start with low application rates and adjust based on plant response and soil test results.

How do I measure and dissolve this product?

Measure by weight for precision. Dissolve in a measured volume of water before adding to your reservoir or nutrient solution. The product dissolves rapidly in warm or room-temperature water. Always add the dissolved solution to a diluted nutrient tank rather than concentrated stock solutions.

Is this product from Jack's Nutrients (J.R. Peters)?

Yes. Jack's Elementals® is a line of individual elemental nutrient products from J.R. Peters, Inc. — the manufacturer of the well-known Jack's Nutrients series. The Elementals line allows growers to make precise adjustments to their nutrient programs using high-quality, individual mineral sources.