--- product_id: 64484146 title: "Jack's Nutrients 15-0-0 Part B Calcium Nitrate, 25lb" brand: "jack's classic" price: "€ 262.00" currency: EUR in_stock: true reviews_count: 8 category: "Jack's Classic" url: https://www.desertcart.pt/products/64484146-jacks-nutrients-15-0-0-part-b-calcium-nitrate-25lb store_origin: PT region: Portugal --- # Water-soluble powder for easy mixing Precise 8.6 oz/100 gal mixing rate 15-0-0 Nitrate-Calcium ratio Jack's Nutrients 15-0-0 Part B Calcium Nitrate, 25lb **Brand:** jack's classic **Price:** € 262.00 **Availability:** ✅ In Stock ## Summary > 🌱 Feed your plants like a pro, watch them thrive like never before! ## Quick Answers - **What is this?** Jack's Nutrients 15-0-0 Part B Calcium Nitrate, 25lb by jack's classic - **How much does it cost?** € 262.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/64484146-jacks-nutrients-15-0-0-part-b-calcium-nitrate-25lb) ## Best For - jack's classic enthusiasts ## Why This Product - Trusted jack's classic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Hydroponic-Ready:** Designed for continuous liquid feed systems with clear volume-based mixing instructions. - • **Effortless Mixing:** Water-soluble powder dissolves quickly, letting you create gallons of custom liquid feed in minutes. - • **Trusted Performance:** Highly rated by hydroponic pros for accelerating growth and maximizing yield potential. - • **Customizable Simplicity:** Two key macronutrients for easy blending with your preferred micronutrient supplements. - • **Precision Nutrient Delivery:** Optimized 15-0-0 formula fuels rapid, robust leaf growth with calcium and nitrate nitrogen. ## Overview Jack's Nutrients 15-0-0 Part B Calcium Nitrate is a 25lb water-soluble powder fertilizer designed for hydroponic and soil applications. It delivers a precise blend of calcium and nitrate nitrogen to promote strong leaf growth and overall plant health. Easily mixed at 8.6 ounces per 100 gallons, it integrates seamlessly into continuous liquid feed programs and pairs perfectly with Jack's Part A formula for balanced nutrition. ## Description desertcart.com : Jack's Nutrients 15-0-0 Part B Calcium Nitrate, 25lb | Part 2 of a 2-Part Sytem, Powdered, Water-Soluble Fertilizer for Calcium Uptake and Strong Leaf Growth, Liquid Feed : Patio, Lawn & Garden Review: The best - Hands down the best hydroponic fertilizer I have ever used!!!! This is like giving steroids to your pl!!! This will make them grow so quickly and produce more so long as you follow specific instructions! Very easy to use as long as you know how to measure!!! I’m a lifelong customer of this product!!!! Review: The best hydroponic nutrients I have ever used. - For the money you get a good supply of fertilizer that is easy to mix and is the best I have found. If you want healthy plants you will be more then happy using this. ## Features - 15-0-0 Analysis: Provides a very soluble and available source of calcium and nitrate nitrogen sources - Works in tandem with Jack's 5-12-26 Part A. - Water-Soluble Powder: Powdered concentrates go further than liquid fertilizers - Simply mix your measured powder with water and you are ready to feed with multiple gallons of liquid fertilizer! - Mixing Rate: Dissolve 8.6 ounces in 100 gallons of water to achieve a final feed strength of 100 PPM N. - Continuous Liquid Feed Program: Intended for use with hydroponic systems - Mixing instructions by volume included. - Made for Simplicity: Made with only 2 major macronutrients for simplicity and customization in mind - Fill in the micronutrient needs of your plants separately for best results. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07CY62XXP | | Application Method | Dissolve in water | | Best Sellers Rank | #45,454 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,145 in Garden Fertilizers | | Brand | Jack's Classic | | Brand Name | Jack's Classic | | Coverage | 25 | | Customer Reviews | 4.7 out of 5 stars 610 Reviews | | Item Form | Powder | | Item Weight | 25 pounds | | Liquid Volume | 1 quarts | | Manufacturer | JR Peters | | Mixing Ratio | 8.6 ounces per 100 gallons | | Model Number | 79080 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | 79080 | | Specific Uses For Product | Leaf Growth, Plant Growth | | Target Species | plants | | UPC | 671341790808 | | Unit Count | 400 Ounce | ## Product Details - **Brand:** Jack's Classic - **Item Form:** Powder - **Item Weight:** 25 pounds - **Liquid Volume:** 1 quarts - **Specific Uses For Product:** Leaf Growth, Plant Growth ## Images ![Jack's Nutrients 15-0-0 Part B Calcium Nitrate, 25lb - Image 1](https://m.media-amazon.com/images/I/71QIMn9XrkL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The best *by E***E on January 27, 2026* Hands down the best hydroponic fertilizer I have ever used!!!! This is like giving steroids to your pl!!! This will make them grow so quickly and produce more so long as you follow specific instructions! Very easy to use as long as you know how to measure!!! I’m a lifelong customer of this product!!!! ### ⭐⭐⭐⭐⭐ The best hydroponic nutrients I have ever used. *by E***D on June 12, 2024* For the money you get a good supply of fertilizer that is easy to mix and is the best I have found. If you want healthy plants you will be more then happy using this. ### ⭐⭐⭐⭐⭐ Yes *by S***E on June 3, 2026* I use this in my hydroponic gardens. I’ve tried other brands but honestly this is the only one I will use. It produces some amazing quality veggies and fruit. ## Frequently Bought Together - Jack's Classic Nutrients 15-0-0 Part B Water-Soluble Fertilizer for Calcium Uptake and Strong Leaf Growth in Continuous Liquid Feed Programs, 25Lbs - Jack's Classic Nutrients Hydroponic 5-12-26 Professional Fertilizer Part A, 25 lbs --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/64484146-jacks-nutrients-15-0-0-part-b-calcium-nitrate-25lb](https://www.desertcart.pt/products/64484146-jacks-nutrients-15-0-0-part-b-calcium-nitrate-25lb) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-14*