A tomato grower in Pune needs quick calcium boost during flowering season, using hydroponics.
Uses Jack's Part B, dissolving 8.6 oz in 100 gallons, supports flowering, arrives in 11-13 days with duties paid, saving ₹ compared to local options.
You save 2,380 (31%)
Estimated doorstep delivery by 25 Nov - 27 Nov from USA






Support Strong Plant Growth at Competitive Cost
Jack's Calcium Nitrate Part B, 2.2lb (1kg), is a water-soluble fertilizer designed for hydroponic and soil-grown crops. It supplies 18% Calcium and 15% Nitrate Nitrogen, promoting strong cell walls and healthy growth. When used after Jack's 5-12-26 Part A, it enhances nutrient uptake and crop vigor. The powder form allows easy mixing and precise dosing, suitable for hydroponic setups and soil applications. Growers report improved plant strength and yield quality with consistent use. Imported directly from the USA, it arrives in 11-13 days with duties included, ensuring reliable supply for Indian growers.
Mix 8.6 oz in 100 gallons of water to achieve 100 PPM N. Use with your hydroponic system or soil crops for optimal results. Fill micronutrient gaps separately for best plant health. This fertilizer is compatible with various crops, including tomatoes, roses, and leafy greens, supporting vigorous growth and crop quality. Delivered via ExpressBox, with all duties paid, and backed by CrowCrowCrow's 14-Day Smile Guarantee.
Focused Nutrient Formula for Targeted Growth
Jack's Calcium Nitrate Part B supplies 18% Calcium and 15% Nitrate Nitrogen, essential for cell wall strength and crop yield. Its water-soluble powder form ensures quick absorption, ideal for hydroponic growers seeking reliable, fast-acting nutrients. Sourced from trusted US manufacturers, it guarantees quality and consistency for Indian farmers and hobbyists.
Suitable for Hydroponic and Soil Crops
This fertilizer supports a wide range of crops, including tomatoes, roses, and leafy greens. Its easy mixing and precise dosing make it ideal for both commercial and home growers in India. Skip if you prefer organic or soil-specific fertilizers; this product is optimized for water-based systems and fast nutrient delivery.
Typical situations where Jack's Classic 15-0-0 Part B Calcium Nitrate helps — illustrative scenarios, not customer reviews.
A tomato grower in Pune needs quick calcium boost during flowering season, using hydroponics.
Uses Jack's Part B, dissolving 8.6 oz in 100 gallons, supports flowering, arrives in 11-13 days with duties paid, saving ₹ compared to local options.
| Feature | Jack's Classic 15-0-0 | Others |
|---|---|---|
| Nutrient Content | 18% Calcium, 15% Nitrate Nitrogen — water-soluble powder, fast acting | Indian calcium nitrate fertilizers typically contain 15-17% Calcium, often in granular form, slower dissolution |
| Form Factor | Powder, dissolves quickly in water for hydroponics | Granular or pellet forms, requiring pre-dissolution and longer mixing time |
| Application Method | Ideal for hydroponic systems and soil drenching | Mostly soil application, less suited for hydroponics without special preparation |
| Price per Unit | ₹622 per oz | ₹300-₹500 for 1kg calcium nitrate, variable quality and solubility |
| SKU | zqq5176 |
| GTIN | 0671341790815 |
| Brand | Jack's Classic |
| Size | 2.2lbs (1kg) |
| Item Form | Powder |
| Item Name | Jack's Nutrients 15-0-0 Part B Calcium Nitrate, 2.2lb |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About Jack's Classic
Jack's Classic is a trusted US brand specializing in professional-grade fertilizers for hydroponics and soil crops.
Compliance & Legal
This is a dietary supplement; not intended to diagnose, treat, cure or prevent any disease.
Share your experience
Bought this from CrowCrowCrow? Other buyers want to hear how it went.

This item:
Jack's Classic 15-0-0 Part B Calcium Nitrate, 2.2lb | Water-Soluble Fertilizer for Hydroponics
5,350

This item
Jack's Classic 15-0-0 Part B Calcium Nitrate, 2.2lb | Water-Soluble Fertilizer for Hydroponics
5,350
Total price:
18,260
You save 3,390 (16%) Extra3 items selected
3 items
18,260You save 3,390 (16%) Extra
| Attributes | Current ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 5,350 7,730 | 3,470 3,980 | 9,440 9,940 | 5,860 7,210 | 5,240 6,460 | 23,440 32,740 | 14,910 20,420 |
| Brand Name | Jack's Classic | Miracle-Gro | Miracle-Gro | Miracle-Gro | Miracle-Gro | LSA International | Shatex |
| Item Form | Powder | N/A | N/A | N/A | N/A | N/A | N/A |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
Why shop with us
One price. One payment. No surprises.
High risk
Buying Direct
Crowcrowcrow
Safe Lane