---
product_id: 335409681
title: "Jack's Classic 12-15-30 Tomato Fertilizer, 1.5 lb"
brand: "jack's classic"
price: "₩23996"
currency: KRW
in_stock: true
reviews_count: 5
url: https://www.desertcart.kr/products/335409681-jacks-classic-12-15-30-tomato-fertilizer-1-5-lb
store_origin: KR
region: South Korea
---

# Micronutrients for vibrant green leaves High potassium boosts fruit yield Water-soluble for precise nutrient delivery Jack's Classic 12-15-30 Tomato Fertilizer, 1.5 lb

**Brand:** jack's classic
**Price:** ₩23996
**Availability:** ✅ In Stock

## Summary

> 🍅 Grow like a pro, harvest like a boss!

## Quick Answers

- **What is this?** Jack's Classic 12-15-30 Tomato Fertilizer, 1.5 lb by jack's classic
- **How much does it cost?** ₩23996 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/335409681-jacks-classic-12-15-30-tomato-fertilizer-1-5-lb)

## 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

- • **Potassium Powerhouse:** Elevated potassium levels guarantee a bountiful, juicy harvest every season.
- • **Vibrant Growth Boost:** Micronutrient-rich mix promotes lush green leaves and robust, strong vines.
- • **Effortless Application:** Comes with a free measuring spoon—no guesswork, no mess, just results.
- • **Trusted Garden Essential:** Pro-grade nutrients trusted by thousands of home gardeners for consistent success.
- • **Precision Nutrient Delivery:** Water-soluble formula ensures every drop counts for your fruiting vines.

## Overview

Jack's Classic 12-15-30 Tomato Fertilizer is a premium water-soluble plant food designed specifically for fruiting vine vegetables. Its high potassium content and balanced micronutrients promote vibrant green foliage, strong vines, and increased fruit production. Easy to use with a free measuring scoop, it delivers professional-grade results for home gardeners seeking a thriving, productive garden.

## Description

Jack's Classic Tomato Feed is a water-soluble plant food with micronutrients for tomatoes and all fruiting vine vegetables and it's designed to be mixed with water for the most accurate and effective nutrient delivery to your plants. With an optimum combination of nutrients, Tomato Feed supplies the nutrients needed most by tomatoes and other fruiting vine vegetables. The higher level of the Potassium element assures a good crop and enhanced micronutrient levels produce vibrant green leaves, strong vines and more fruit. Jack's advanced formulation uses the highest quality nutrients available, delivering professional results to your home garden. All Jack's Classic products come with a free measuring spoon for precise and accurate product application and detailed instructions in each container.

Review: Excellent.
Review: I used this on all of the vegetables growing in my garden this year and it worked so well! I used it on zucchini, cucumber, beefsteak tomatoes, bell pepper, and cherry tomato plants. They all grew really well and stayed green and healthy. It's very easy to use, and it even comes with a little measuring scoop. You scoop the amount necessary for your watering can size, fill with water, and give it a little mix. Then, just pour it into your plants as you normally would. The mix doesn't really have much of a smell, but it visually appears a bit blue from the ingredients. It's a really good value for the money in comparison to other garden fertilizers, and the brand is trust worthy. I will keep purchasing this every year for my veggies!

## Features

- Optimum Combination Of Nutrients For Fruiting Vine Vegetables
- High Potassium Assures A Good Crop
- Produces Vibrant Green Leaves, Strong Vines And More Fruit
- No Assembly Required

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01C9WRH0M |
| Are batteries included? | No |
| Best Sellers Rank | #328,161 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #388 in Vegetable Plant Fertilizers |
| Brand | Jack's Classic |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,494) |
| Date First Available | 24 March 2016 |
| Global Trade Identification Number | 00671341513247 |
| Item Dimensions LxWxH | 12.7 x 12.7 x 12.7 Centimeters |
| Item Form | Liquid |
| Item Height | 5 Inches |
| Item Weight | 680 g |
| Item Width | 5 Inches |
| Item model number | 51324 |
| Liquid Volume | 1.5 Litres |
| Manufacturer | JR Peter's |
| Model number | 51324 |
| Net Quantity | 709.76 Milliliters |
| Product Dimensions | 12.7 x 12.7 x 12.7 cm; 680.39 g |
| Specific Uses For Product | Plant Growth |
| UPC | 796159313978 671341513247 |

## Product Details

- **Brand:** Jack's Classic
- **Item Form:** Liquid
- **Item Weight:** 680 g
- **Liquid Volume:** 1.5 Litres
- **Specific Uses For Product:** Plant Growth

## Images

![Jack's Classic 12-15-30 Tomato Fertilizer, 1.5 lb - Image 1](https://m.media-amazon.com/images/I/71Oo5paCp-L.jpg)
![Jack's Classic 12-15-30 Tomato Fertilizer, 1.5 lb - Image 2](https://m.media-amazon.com/images/I/81+zJiPTNpL.jpg)
![Jack's Classic 12-15-30 Tomato Fertilizer, 1.5 lb - Image 3](https://m.media-amazon.com/images/I/816glHLzFeL.jpg)
![Jack's Classic 12-15-30 Tomato Fertilizer, 1.5 lb - Image 4](https://m.media-amazon.com/images/I/810hPb27FtL.jpg)
![Jack's Classic 12-15-30 Tomato Fertilizer, 1.5 lb - Image 5](https://m.media-amazon.com/images/I/81-MFkUWqIL.jpg)

## Questions & Answers

**Q: does this get sprayed on foliage or ground?**
A: I use 1 scoop per 1 gallon water diluted directly to soil,If diluted to 1/3 scoop per gallon it can be used as a foliar feed (spray on). Remember to always foliar feed when sun is setting to avoid sun scald or nutrient burn. It works great!

**Q: How do you use this? For example Tbsp per gallon of water or so on?**
A: There is a measuring spoon in the container and so it's one measure per gallon, and my watering can is a 2 gallon so I use 2 spoon full

**Q: Does this have calcium to prevent BER?**
A: ITs in it...yes...>BUT IT DID NOT PREVENT BER on my plants...I added more Calcium Nitrate to my plants

**Q: Used for tomatoes or peppers, does it alter.. the color, acidity, or flavor?  using in ceramic container garden on deck..**
A: I have both ceramic and plastic pots for tomatoes.  Neither has taste changes when nourished with Jacks.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***S on 8 October 2025*

Excellent.

### ⭐⭐⭐⭐⭐ Review
*by K***L on 28 November 2025*

I used this on all of the vegetables growing in my garden this year and it worked so well! I used it on zucchini, cucumber, beefsteak tomatoes, bell pepper, and cherry tomato plants. They all grew really well and stayed green and healthy. It's very easy to use, and it even comes with a little measuring scoop. You scoop the amount necessary for your watering can size, fill with water, and give it a little mix. Then, just pour it into your plants as you normally would. The mix doesn't really have much of a smell, but it visually appears a bit blue from the ingredients. It's a really good value for the money in comparison to other garden fertilizers, and the brand is trust worthy. I will keep purchasing this every year for my veggies!

### ⭐⭐⭐⭐⭐ Review
*by J***E on 21 August 2020*

I've been using the JR brand fertilizers now for three years. I used to be one of those "staunch organic" gardeners that thought poorly of chemically derived fertilizers. I started gardening in the subarctic and found that I just wasn't getting enough performance in my short garden season from organic ferts. I wanted to make a change. I did a lot of research and found this company. I liked that they used soil science and were a soil lab first and foremost. They have clearly been at this game for a good long time (under a couple names) and had a good reputation. They have a clear understanding of the nuances of various plants out there and the needs of a gardener that are trying to care for those plants. I first tried the all purpose and within one week, I was sold on the product line. This stuff is amazing and forever changed my entire opinion of non-organic fertilizers. The bottom line, if my plants were unhappy with it, they wouldn't respond as well as they do. Within two days of applying this, you will see significant and noticeable growth. The liquid application works quickly and effectively. When used in appropriate dosages, and even a little bit more, there is no risk of fertilizer burn. For all of my nightshades and peppers, I use the Tomato Feed platform for the first two applications of fertilizer. (This ensures appropriate calcium and magnesium throughout the season.) I then switch to a 50/50 mix of the all-purpose and bloom booster and continue this rate for the rest of the season. I have found the mix to be a more effective balance between flowering and growth than bloom booster alone. For most other veggies, I use just the all purpose. For my flower pots and beds, I use straight bloom booster throughout the entire season. I have completely converted over to the JR Peter's brand fertilizers and use it exclusively across everything, even my indoor citrus and houseplants using those purpose-focused products as well. The Tomato Feed is expensive, at least compared to their other products! But, you don't have to use it for the entire season. I only ever use it for the first two fertilizer applications. If I start to notice magnesium or calcium deficiencies later in the season, I reapply. Otherwise, don't use this stuff every day or you'll go broke! Use the all purpose or bloom booster as a regular, more affordable fert for the rest of the season. I get about 2-3 years from one of these buckets and that grows a lot of tomatoes! Since switching, our production rates have shot through the roof and we even do well in "bad seasons" across most of our garden. While fellow gardeners complain, we reap incredible benefits because of this product line.I can't recommend this stuff enough, honestly!

## Frequently Bought Together

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- Jack's Classic 20-6-22 Petunia Feed Water-Soluble Fertilizer with Micronutrients to Provide Lush Green Annuals, 1.5lbs

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-19*