---
product_id: 38707094
title: "Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 25 LB"
brand: "greenway biotech, inc."
price: "2474.32 DT"
currency: TND
in_stock: true
category: "Greenway Biotech, Inc."
url: https://www.desertcart.tn/products/38707094-tomato-fertilizer-4-18-38-powder-water-soluble-with-chelated
store_origin: TN
region: Tunisia
---

# 4-18-38 NPK ratio for max fruit yield 100% water soluble, no clogging Chelated micronutrients for pH 4-9 availability Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 25 LB

**Brand:** greenway biotech, inc.
**Price:** 2474.32 DT
**Availability:** ✅ In Stock

## Summary

> 🍅 Unlock Bigger, Tastier Harvests with Every Sprinkle!

## Quick Answers

- **What is this?** Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 25 LB by greenway biotech, inc.
- **How much does it cost?** 2474.32 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/38707094-tomato-fertilizer-4-18-38-powder-water-soluble-with-chelated)

## Best For

- greenway biotech, inc. enthusiasts

## Why This Product

- Trusted greenway biotech, inc. brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Application:** Fully water soluble powder dissolves instantly, perfect for drip, foliar, or hydroponic use
- • **Trusted Purity & Safety:** CDFA-registered and heavy metal tested for clean, reliable feeding every season
- • **Micronutrient Powerhouse:** EDTA-chelated Iron, Manganese, Zinc & Copper ensure nutrient uptake in any soil or hydro system
- • **One Formula, All Nightshades:** Versatile for tomatoes, peppers, eggplants, potatoes & more—grow your entire garden with confidence
- • **Precision Nightshade Nutrition:** Tailored 4-18-38 formula boosts fruit size & flavor without excess foliage

## Overview

Greenway Biotech's Tomato Fertilizer 4-18-38 is a professional-grade, water-soluble powder designed specifically for nightshade crops like tomatoes, peppers, and eggplants. Featuring a high potassium formula to enhance fruit size, flavor, and shelf life, it includes chelated micronutrients for optimal nutrient availability across a wide pH range. Suitable for soil and hydroponic systems, this 25 lb pack is CDFA-registered and rigorously tested for purity, making it a trusted choice for both home gardeners and professionals aiming for superior yields.

## Description

desertcart.com : Greenway Biotech, Inc. Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 25 LB : Patio, Lawn & Garden

## Features

- NIGHTSHADE CROP FORMULA 4-18-38 POWDER — Engineered specifically for tomatoes, peppers, eggplants, and potatoes; very high potassium (38%) drives bigger fruit, better flavor, and longer shelf life while low nitrogen (4%) prevents excessive foliage that robs energy from fruit production
- COMPLETE MICRONUTRIENT PACKAGE INCLUDED — Contains Iron, Manganese, Zinc, and Copper in EDTA-chelated form plus Boron and Molybdenum; chelated metals stay plant-available across pH 4-9, helping prevent nutrient lockout in soil and hydroponic systems
- 100% WATER SOLUBLE & CLOG-FREE — Professional-grade powder dissolves completely in room temperature water; ideal for soil drench, foliar spray, drip irrigation, NFT, DWC, and Dutch bucket systems without clogging nozzles or drip lines
- TESTED FOR PURITY, CDFA REGISTERED — Every batch independently tested for heavy metals with results consistently well below required limits; registered with California Department of Food and Agriculture for professional and home grower confidence
- VERSATILE FOR ALL NIGHTSHADES — One formula for your entire nightshade garden: beefsteak, cherry, roma, grape, and heirloom tomatoes, bell and hot peppers, eggplants, potatoes, tomatillos, and ground cherries; Made in USA since 1989

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MZIJ35S |
| Best Sellers Rank | #226,387 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3,106 in Garden Fertilizers |
| Brand | Greenway Biotech, Inc. |
| Coverage | 25 |
| Customer Reviews | 4.6 out of 5 stars 283 Reviews |
| Item Form | Powder |
| Item Weight | 25.2 pounds |
| Liquid Volume | 1 liters |
| Manufacturer | Greenway Biotech, Inc. |
| Mixing Ratio | 4:18:38 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | Tomato_Parent |
| Specific Uses For Product | Hydroponic,Hydroponics |
| Target Species | Tomatoes |
| UPC | 018227120944 |
| Unit Count | 400 Ounce |

## Product Details

- **Brand:** Greenway Biotech, Inc.
- **Item Form:** Powder
- **Item Weight:** 25.2 pounds
- **Liquid Volume:** 1 liters
- **Specific Uses For Product:** Hydroponic,Hydroponics

## Images

![Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 25 LB - Image 1](https://m.media-amazon.com/images/I/81ZlMAD2X8L.jpg)
![Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 25 LB - Image 2](https://m.media-amazon.com/images/I/617Tjgoxi9L.jpg)
![Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 25 LB - Image 3](https://m.media-amazon.com/images/I/81LI1LbsgcL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does anyone know how much to put in per gallon for a Hydroponic setup?**
A: This is for 5 gallons. I have been using this for tomatoes works great. 12 grams of the fertilizer. 12 grams calcium nitrate. 6 grams Epsom salt . You need gram scales. 28 grams in an ounce so not hardly half an ounce

**Q: I'm growing tomatoes and peppers in 20 gal. containers, what else do I need to go with this fertilizer?**
A: Calcium nitrate and Epsom salt is all that's needed along with this. If in soil no need for pH down but if you using soiless mediums then just pH down your solution about 1/4 teaspoon to 2mls hope this helps. :)

**Q: As side dressing when tomato plant is already producing large tomatoes, how to use? sprinkle on soil or mix in water and pour on soil around root??**
A: Hello,

You can use either way. 
If you would like to use for a liquid application you will need to dissolve 2.5 grams of fertilizer per gallon of water, and then poor onto soil.
Depending on the quality of the soil amounts vary, but one gallon of solution should be enough for about 15 to 20 adult tomato plants.

**Q: Can you put this straight into the reservoir of wicking tubs?**
A: Hello,

You can add it straight to the tubs but we usually recommend dissolving in a bit of water first for easier mixing.

## Frequently Bought Together

- Greenway Biotech Tomato Fertilizer Powder 4-18-38 Plus Trace Minerals- 100% Water Soluble Includes Essential Chelated Micronutrients- (25 Pounds)
- Greenway Biotech Pepper & Herb Fertilizer 11-11-40 Powder with Micronutrients and Trace Minerals- 100% Water Soluble Fertilizers (25 Pounds Makes 5000 Gallons)
- Greenway Biotech Cucumber Fertilizer 8-16-36-100% Water Soluble Plus Chelated Micronutrients Suitable for Soil, hydroponics, and aeroponics - 2 Pounds (Makes ~400 Gallons)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-11-11*