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Emerald Harvest Cali Pro Grow B - 2.5 Gallon

Vegetative Stage Indoor Outdoor Regular Watering Watering Systems Hydroponics Coco Coir Safe Soil Soilless

Emerald Harvest Cali Pro Grow B - 2.5 Gallon

$85.50
$106.88 $85.50
20% OFF
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OTHER AVAILABLE SIZES / MODELS:

1 Quart 2.5 Gallon
Store Availability
Winnipeg, Manitoba
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Barrie, Ontario
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Newmarket, Ontario
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Pickering, Ontario
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Description

Emerald Harvest Cali Pro Grow A and B is a 2-part base nutrient series for hydroponic gardens, built to deliver complete grow-stage plant nutrition in a streamlined format. This premium base nutrient works as a core fertilizer foundation, supplying the essential elements crops rely on for vigorous growth across the crop life cycle.

Cali Pro Grow A and B is formulated around precise concentrations and ratios, with a full spectrum of macro and micronutrients in the program. It includes the primary macronutrients nitrogen, phosphorus and potassium, plus secondary macronutrients calcium, magnesium and sulfur. For micronutrient coverage, the formula includes chelated iron, copper, manganese and zinc, along with the other micronutrients needed to support consistent development and strong overall plant performance.

For shoppers who want the numbers, Cali Pro Grow A is 3-0-0 and Cali Pro Grow B is 2-2-5. This split 2-part nutrient series is designed to keep your base nutrition complete while staying simple for day-to-day growing, making it a practical option for both novice and expert growers who want a dependable foundation without extra complexity.

The nutrient inputs are built from high-grade raw materials and a defined mineral profile. In this series, Grow A is derived from nitrate and urea-based nitrogen sources, supported by chelated micronutrient inputs such as iron EDTA, copper EDTA, manganese EDTA, and zinc EDTA, along with trace components including boron and molybdenum sources. Grow B is derived from key mineral inputs including potassium nitrate, monopotassium phosphate, magnesium nitrate, ammonium nitrate, and magnesium sulfate, rounding out the multi-element base that supports balanced vegetative growth.

Emerald Harvest positions Cali Pro as made for hydroponics and engineered specifically for high-yield plants, giving growers a consistent base nutrient platform for hydroponic systems where reliable, complete mineral nutrition matters. It also has a stated shelf life of 3 years or more when stored under normal conditions, supporting consistent use cycle after cycle.

Emerald Harvest Cali Pro Grow A and B is a good fit for growers who want a premium base nutrient series made for hydroponics, with chelated micronutrients and a complete essential-elements profile for vigorous grow-stage development.

How To Use

How to Use Emerald Harvest Cali Pro Grow B - 2.5 Gallon

Step-by-step mixing and feeding instructions for Emerald Harvest Cali Pro Grow B - 2.5 Gallon.

Mixing & preparation

Fill your reservoir or watering container with clean, room-temperature water first. Shake the bottle of Emerald Harvest Cali Pro Grow B - 2.5 Gallon well before every use. Using the feeding schedule below, measure the recommended dose and add it directly to the water while stirring. Allow the solution to mix fully before adding any other fertilizers, additives, or supplements.

Always add nutrients to water — not the other way around. Mix thoroughly between products to ensure an even, stable nutrient solution.

Week-by-week feeding schedule

Vegetative stage — Grow B

  • Week 1: mix 0.5 ml per litre of water or nutrient solution.
  • Week 2: mix 0.75 ml per litre of water or nutrient solution.
  • Week 3: mix 1.0 ml per litre of water or nutrient solution.
  • Week 4: mix 1.25 ml per litre of water or nutrient solution.

Flowering stage — Grow B

  • Week 1: mix 1.25 ml per litre of water or nutrient solution.
  • Week 2: do not use this product during this week of flowering.
  • Week 3: do not use this product during this week of flowering.
  • Week 4: do not use this product during this week of flowering.
  • Week 5: do not use this product during this week of flowering.
  • Week 6: do not use this product during this week of flowering.
  • Week 7: do not use this product during this week of flowering.
  • Week 8: do not use this product during this week of flowering.
  • Week 9: do not use this product during this week of flowering.

Tips for best results

  • Maintain pH and EC/ppm within the range recommended for your growing medium and crop.
  • Use fresh nutrient solution whenever possible and avoid leaving mixed solution stagnant for long periods.
  • Store nutrients in a cool, dark place away from direct sunlight and extreme temperatures.
  • Keep bottles tightly sealed when not in use to reduce air exposure and preserve product quality.
  • Use clean measuring tools and regularly rinse or clean your reservoir, lines, and irrigation equipment.

Common mistakes to avoid

  • Do not mix different nutrients or additives together in concentrated form before adding them to water.
  • Do not exceed the recommended dosage unless you are following a tested, crop-specific feeding plan.
  • Do not skip pH or EC/ppm checks when growing in hydroponic or soilless systems.
  • Do not allow the nutrient solution to freeze or overheat, as this can damage the formulation.
  • Do not ignore the directions on the product label for your specific crop, growth stage, and system type.

Warnings & Safety

Warning – Important Safety Information

This product may cause mild skin irritation and eye irritation. Avoid unnecessary contact with skin, eyes, and clothing. Use only as directed.

General safety precautions

Read and follow all instructions on the product label and any accompanying documentation before use. Keep out of reach of children and pets. Do not ingest. Avoid breathing vapours, mist, or dust that may be generated during handling or use.

Wear appropriate personal protective equipment (PPE), such as protective gloves, long sleeves, long pants and closed-toe footwear. When there is a risk of splashing or airborne particles, use safety glasses or other suitable eye and face protection.

First aid – skin contact

IF ON SKIN OR HAIR: Remove contaminated clothing immediately. Rinse skin with clean water for several minutes, then wash with mild soap and water. If irritation or redness develops and persists, seek medical attention. Wash contaminated clothing before reuse.

First aid – eye contact

IF IN EYES: Rinse cautiously with clean water for several minutes, keeping eyelids open. Remove contact lenses if present and easy to do. Continue rinsing. If irritation persists, obtain medical advice.

First aid – ingestion and inhalation

IF SWALLOWED: Rinse mouth thoroughly with water. Do not induce vomiting unless instructed by a medical professional. Seek medical attention if you feel unwell.

IF INHALED: Move the person to fresh air and keep them comfortable for breathing. If coughing, breathing difficulty, dizziness or other symptoms occur, seek medical assistance.

Storage and handling

Store this product in its original closed container, in a cool, dry and well-ventilated area. Protect from extreme temperatures and direct sunlight. Keep container tightly sealed when not in use.

Avoid release to drains, natural waterways or outdoor soil. Dispose of unused product and empty containers in accordance with local regulations and the directions on the label.

Important: If medical advice is needed, keep the product label or container available. Always follow the specific instructions and safety recommendations provided by the manufacturer. This safety notice is intended as general guidance and does not replace official label directions or documentation.

Guaranteed Minimum Analysis
Total Nitrogen (N) 2.0%
Ammoniacal Nitrogen (N) 0.3%
Nitrate Nitrogen (N) 1.7%
Available Phosphate (P2O5) 2.0%
Water Soluble Phosphorus (P) 0.9%
Soluble Potash (K2O) 5.0%
Water Soluble Potassium (K) 4.0%
Water Soluble Magnesium (Mg) 0.5%
Sulfur (S) 0.5%

Derived From
Potassium Nitrate
Monopotassium Phosphate
Magnesium Nitrate
Ammonium Nitrate
Magnesium Sulfate

Frequently Asked Questions
What Is ammoniacal nitrogen (N) and why do plants need It?

Ammoniacal Nitrogen (N) is a plant-available form of ammonium (NH₄⁺) that provides a steady, gentle source of nitrogen for healthy green growth. Unlike fast-release nitrogen types, ammoniacal nitrogen feeds plants slowly, helps stabilize root-zone pH, and works well in cooler temperatures. It is commonly used during early vegetative growth because it supports strong leaf development without burning young roots. If plants show pale leaves, slow growth, or weak stems, they may need more available ammoniacal nitrogen.

Read the full guide

What makes ammonium nitrate different from other nitrogen ingredients for plant growth?

Ammonium nitrate is unique because it provides nitrogen in two plant-usable forms at once, which can give a fast green-up while still supporting steadier uptake depending on the root-zone conditions. That matters because it can correct true nitrogen shortages quickly, but it also needs careful balance since too much can push overly soft growth and trigger pH drift and nutrient imbalances.

Read the full guide

What does available phosphate (P₂O₅) do for plant growth?

Available Phosphate (P₂O₅) supports root development, energy transfer, and early structural growth by providing a form of phosphorus that plants can absorb and use quickly.

Read the full guide

What does nitrate nitrogen (N) do for plants?

Nitrate Nitrogen provides a stable, easy-to-absorb form of nitrogen that supports steady growth, strong foliage, and reliable plant development without sudden nutrient swings.

Read the full guide

Why is soluble potash (K2O) important for plants?

Soluble potash (K2O) is important because it helps plants control water use, move sugars to new growth and fruit, and build stronger, higher-quality structure under stress. It’s unique from many other nutrients because it acts more like a regulator and transport helper than a direct “building material,” so the biggest benefits show up as steadier growth, stronger stems, and better finishing instead of just bigger leaves.

Read the full guide

Why is sulfur (S) important for plant growth?

Sulfur is important because plants need it to build key amino acids and proteins that drive real growth, strong structure, and efficient use of nitrogen, making it uniquely different from “look-alike” nutrients that may change leaf color without supporting the plant’s core building process.

Read the full guide

Why is total nitrogen (N) important for plant growth, and what makes it different from other nutrients?

Total Nitrogen is important because it directly drives leafy growth, chlorophyll production, and overall growth speed, which sets the pace for the entire plant. It’s unique because the “total” number can include different nitrogen forms that behave differently in the root zone, meaning the same total amount can produce very different results depending on the nitrogen type and plant stage.

Read the full guide

Why is water soluble magnesium important for plant growth?

Water soluble magnesium is important because it quickly restores the plant’s ability to make chlorophyll and produce energy, which helps stop interveinal yellowing on older leaves and improves overall nutrient use; it’s unique because it becomes available immediately in water, making it faster and more predictable than slower magnesium sources.

Read the full guide

Why is water-soluble phosphorus important for plants?

Water-soluble phosphorus is important because it is the fast-available form plants can absorb quickly to power energy transfer, root development, and early growth, helping plants establish faster and perform better under stress; it’s unique because it works immediately in the root-zone solution instead of relying on slow conversion before plants can use it.

Read the full guide

Why is water soluble potassium (K) important for plant growth?

Water soluble potassium is important because it helps plants quickly control water balance, move sugars to flowers and fruit, and build stronger stems during high-demand growth stages. It’s unique from many other nutrients because it acts like a regulator for plant function and stress response rather than mainly serving as a building block for plant tissues.

Read the full guide

What does magnesium nitrate do for plants?

Magnesium nitrate supplies fast-available magnesium for chlorophyll and photosynthesis while also adding nitrate nitrogen that can speed up greening and growth. It’s unique because it can correct magnesium-related yellowing quickly but also changes growth momentum, so it’s most valuable when magnesium is truly limiting and the plant can safely use extra nitrate.

Read the full guide

What does magnesium sulfate do for plants?

Magnesium sulfate supplies magnesium for chlorophyll and sugar movement plus sulfur for protein building, helping plants stay efficient and green during high-demand growth. It’s unique because it adds magnesium without extra nitrogen or calcium, so it corrects magnesium issues with fewer side effects when balance is the real goal.

Read the full guide

What does monopotassium phosphate do for flowering plants?

Monopotassium phosphate provides fast phosphorus and potassium that support energy use, nutrient flow, and bloom development without adding nitrogen, so it helps flowering progress cleanly without pushing extra leafy growth. It’s unique because it delivers a focused PK boost in a highly soluble form, which can correct stage-related demand quickly, but it must be used carefully to avoid potassium-heavy imbalances that can block calcium and magnesium uptake.

Read the full guide

Is potassium nitrate better for quick deficiency correction than other potassium sources?

Potassium nitrate is often better for quick correction when the plant needs both potassium and fast nitrate nitrogen, because it dissolves cleanly and is taken up quickly, unlike potassium sources that don’t supply nitrogen. It’s unique because it can restore leaf color and growth momentum while also improving water regulation, but it can backfire if nitrogen is already high or if salt levels are already stressing the roots.

Read the full guide

Safety & Technical Documents
View full details
Nutrient Feed Chart

Vegetative — Week 1

  1. Grow A
    —
  2. Grow B
    —
  3. Bloom A
    —
  4. Bloom B
    —
  5. Emerald Goddess
    —
  6. King Kola
    —
  7. Honey Chome
    —
  8. Root Wizard
    —

Flowering — Week 1

  1. Grow A
    —
  2. Grow B
    —
  3. Bloom A
    —
  4. Bloom B
    —
  5. Emerald Goddess
    —
  6. King Kola
    —
  7. Honey Chome
    —
  8. Root Wizard
    —

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