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 - 5 LB

$11.25 USD
Shipping fees will be calculated at checkout.
Size
  • Free worldwide shipping

  • Free returns

  • Carbon neutral

  • Secure payments

  • OPTIMIZED NIGHTSHADE FORMULA (4-18-38): Designed for tomatoes, peppers, eggplants, and potatoes—high potassium (38%) boosts fruit size, flavor, and shelf life while low nitrogen (4%) limits excess foliage.
  • COMPLETE MICRONUTRIENT SUPPORT: Includes Iron, Manganese, Zinc, Copper (EDTA-chelated), plus Boron and Molybdenum for better nutrient uptake across pH 4–9 and reduced lockout.
  • 100% WATER SOLUBLE & CLOG-FREE: Fully dissolves in water for smooth use in hydroponics, drip systems, foliar sprays, NFT, DWC, and Dutch buckets without clogging.
  • TESTED FOR PURITY & SAFETY: Independently tested for heavy metals and CDFA registered, ensuring reliable, safe, and high-quality performance.
  • ALL-IN-ONE FOR NIGHTSHADE CROPS: Suitable for all varieties—tomatoes, peppers, eggplants, potatoes, tomatillos, and more; trusted formula made in the USA since 1989.
  • FLEXIBLE APPLICATION RATES: Soil & containers: 1–2 tsp per gallon every 1–2 weeks. Hydroponics: 0.5–0.75 lbs per 100 gallons. Compatible with all irrigation methods including drip and foliar spray.
  • HIGH PHOSPHORUS FOR STRONG ROOT & BLOOM SET: 18% phosphorus supports vigorous root development and abundant flower set—critical for high-yield harvests from tomatoes, eggplants, and peppers.
  • WORKS IN ALL GROWING MEDIA: Performs in soil, coco coir, perlite, rockwool, and DWC—adjust EC and pH after mixing for best results in hydroponic reservoirs.
UPC619206360483
Coveragevegetable gardens
Item FormLiquid, Powder
Unit Count16 Ounce
Item Weight16 ounces
Part NumberTomato_Parent
ManufacturerGreenway Biotech, Inc.
Mixing Ratio1/2 teaspoon per gallon of water or 3 grams per plant
Model NumberTB4-18-38
Liquid Volume1 quarts
Target Speciestomatoes
Specific Uses For ProductHydroponic,Hydroponics
Greenway Biotech Logo
Tomato Plant and Tomato Fertilizer

Greenway Biotech Tomato Fertilizer 4-18-38

Who doesn't love a tasty and juicy tomato? Whether it's for eating as is with a little bit of salt, cooking in a pasta sauce or possibly even simply throwing it at someone (Hello La Tomatina Festival!). To get great tomatoes, though, you need the right blend of nutrients, and here at Greenway Biotech. We've spent hundreds of hours trying to formulate the best blend of nutrients for our tomato fertilizer.

It's got all the nutrients your tomatoes need whether you're growing hydroponically or in the soil for excellent taste and solid crop quality. Naturally, it's free of heavy metals, and it's 100 percent water-soluble. This concentrated solution can make up to 1,000 gallons of liquid tomato fertilizer and even includes iron, manganese, zinc and copper along with the required amounts of phosphorus, sulfur, and nitrogen.

When you're ready for tasty tomatoes and consistent crop quality, choose Greenway Biotech's tomato fertilizer for all the nutrition your tomatoes need.

A 5-pound concentrated bag can make up to 1,000 gallons of liquid tomato fertilizer and in addition to Nitrogen, Phosphorus, and Potassium even includes chelated form Iron EDTA, Zinc EDTA, Manganese EDTA, and Cupper EDTA along with Sulfur, Boron, and Sodium Molybdate.

Tomato Fertilizer is also suitable for:

  • Eggplants, Potatoes, Tomatillo
  • Goji Berries, Peppers
  • Chayote, Nipplefruit

tomato plant and tomato fertilizer

Application Rates for Greenway Biotech Tomato Fertilizer

Soil Application:

  • For individual plants: Begin application at planting time, applying 3 grams (approximately 1/2 teaspoon) of fertilizer per plant every 4-6 weeks. The first application should coincide with planting, and the last application should be timed to occur just before the first harvest.

Foliar/ Liquid Application:

  • For individual plants: Begin application at planting time. If growing from seeds, wait until the first true leaves have developed before applying fertilizer. Then, apply 1 gram of fertilizer per plant every 1-2 weeks. The last application should be timed to occur just before the first harvest.

Hydroponic Application:

  • 3 grams (or 1/2 teaspoons.) per plant. We recommend using at least 1 gallon of water per plant.

Benefits of Tomato Fertilizer

  • 100% Water Soluble
  • Heavy metal free.
  • No harmful chemicals.
  • Includes essential chelated micronutrients.
Water Soluble Tomato Fertilizer 4-18-38

How to Use Greenway Biotech Tomato Fertilizer for Soil Application

Spread the tomato fertilizer by placing it onto the soil. (3 grams or 1/2 teaspoons per plant)

Note: Do not allow direct contact between your skin and the fertilizer.

How to Mix Tomato Fertilizer into Soil

How to Use Greenway Biotech Tomato Fertilizer for Soil Application

Work the tomato fertilizer into the soil by mixing it into the dirt.

Water thoroughly after applying fertilizer

How to Use Greenway Biotech Tomato Fertilizer for Soil Application

Water plants thoroughly after application.

Add fertilizer to water

How to Use Greenway Biotech Tomato Fertilizer for Foliar Application

Dissolve 1 gram of tomato fertilizer in minimum 1 quart of water.

Note: This solution is enough for 1 plants. To make solution for more plants just add 1 gram per plant and make sure not saturate the solution. For example, you could dissolve 20 grams in 1 gallon if you have 20 plants and apply it evenly to all of them.

Once fertilizer is dissolved, spray solution onto plant.

How to Use Greenway Biotech Tomato Fertilizer for Liquid/Foliar Application

Foliar Application: Spray the tomato fertilizer solution onto the plants approximately 6-8 inches from the leaves.

Note: We recommend applying fertilizer early in the morning or late in the afternoon to avoid burning plants. Do not apply when temperatures outside exceed 65 degrees Fahrenheit.

Water thoroughly after applying fertilizer

How to Use Greenway Biotech Tomato Fertilizer for Foliar Application

Water plants thoroughly after application

Foliar Application: Depending on the quality of the soil and which stage the plants are in, the amounts and frequency vary. For a healthy soil apply fertilizer once every 1-2 weeks.

hydroponics fertilizer

How to Use Greenway Biotech Tomato Fertilizer for Hydroponics

For maintenance purposes apply 2.5 grams/gallon of Tomato fertilizer to your water reservoir.

Example: 30 gallon reservoir would require 75 grams of fertilizer.

Bag of Fertilizer

How to Use Greenway Biotech Tomato Fertilizer for Hydroponics

For application rates addressing nutrient deficiencies, depends on the number of your plants, your type of system and whether you're using additional fertilizers.

Example title

Recently viewed

Cart

loading