How to Mix EZ GRO Plant Nutrients

Hydroponics, Nutrients | 0 comments

From Powder → Liquid Concentrate → Working Solution

There are 3 main steps to mixing nutrients for your plants.

Step 1: Powdered Nutrients

The nutrients come in 3 parts: A, B, and C. This lets you adjust how much of each nutrient your plants get.

  • These nutrients are in powder form, so you must measure them by weight (ounces on a scale), not by using a measuring cup.
  • The correct amounts are:
    • Part A: 8 oz (by weight)
    • Part B: 8 oz (by weight)
    • Part C: 5 oz (by weight)

Step 2: Make Liquid Concentrates

Next, you turn each powder into a liquid concentrate.

Important: Each part (A, B, and C) must be mixed separately.

Instructions:

  1. Get 3 one-gallon jugs (one for each part).
  2. Fill each jug with filtered, dechlorinated water.
  3. Label each jug clearly:
    • “Nutrient Solution Part A – DO NOT DRINK” (same for B and C)
  4. Pour a little water out of the jug into a glass (to prevent overflow).
  5. Add the entire powder for that part into the jug.
    • Use a funnel if needed.
    • Do NOT add powder to an empty jug first—it won’t dissolve properly.
  6. Close the lid and shake hard for 1 minute.
  7. Pour the saved water back into the jug (but don’t overfill).
  8. Repeat these steps for Parts B and C.

Now you have 3 liquid concentrates.
These can last a long time if stored sealed.

Step 3: Make the Working Solution

The working solution is what actually feeds your plants. It goes into your system’s reservoir.

  • Measure liquids by volume (fluid ounces).
  • For every 1 gallon of water, add:
    • 1.28 oz of Part A
    • 1.28 oz of Part B
    • 1.28 oz of Part C

This creates the correct nutrient strength for plants.

Reminder: Always consider the EC (electrical conductivity) of your water, which affects nutrient levels.

Examples

Example 1: Small System (5-gallon reservoir)

  • Add 4 gallons of water
  • Add nutrients:
    • 1.28 oz × 4 = 5.12 oz of each part
  • Total nutrients:
    • 5.12 oz × 3 parts = 15.36 oz nutrients
  • Final mix:
    • About 5 gallons of working solution

Example 2: Large System (55-gallon barrel)

  • Add 50 gallons of water
  • Add:
    • ½ gallon of Part A
    • ½ gallon of Part B
    • ½ gallon of Part C
  • Total:
    • 51.5 gallons of working solution

Simple Summary

  1. Weigh the powders (A, B, C).
  2. Mix each one into its own gallon of water to make concentrates.

Add small amounts of each concentrate to water to feed your plants.

Submit a Comment