General Hydroponics FloraGro

General Hydroponics FloraGro is one of the three core components of the legendary FloraSeries nutrient system, the original 3-part hydroponic nutrient program introduced in 1976. Designed specifically to support structural and vegetative growth, FloraGro provides the nitrogen, potassium, magnesium, and essential minerals plants require to develop strong stems, vigorous foliage, healthy roots, and rapid early growth.

Rather than relying on a fixed nutrient formula throughout the entire life cycle, FloraSeries allows growers to adjust the ratio of FloraGro, FloraMicro, and FloraBloom to precisely match changing nutritional demands from seedlings through harvest. This flexible "building block" approach has made FloraSeries one of the most widely used plant nutrition systems in the world.

FloraGro is formulated for use in hydroponic systems, coco coir, soil, peat-based mixes, rockwool, water culture, and other growing media. The concentrated liquid formula remains fully water soluble for fast nutrient availability while helping maintain balanced nutrition throughout vegetative development.

The formula supplies nitrogen for rapid foliage production, potassium for overall plant vigor, phosphorus to support root development, and magnesium for chlorophyll production and photosynthesis. When combined with FloraMicro and FloraBloom according to General Hydroponics feeding schedules, FloraGro helps deliver balanced nutrition throughout every stage of growth.

General Hydroponics batch tests FloraSeries in modern quality-control laboratories to ensure every bottle delivers consistent mineral ratios and reliable performance.

For best mixing results, always add FloraMicro to fresh water first, stir thoroughly, then add FloraGro before adding FloraBloom. Mixing concentrated products together before dilution may cause nutrient lockout.

Available in multiple container sizes, FloraGro works equally well for hobby gardeners, greenhouse operations, commercial growers, and research facilities.

Original FloraSeries Formula

FloraGro is part of the original FloraSeries introduced in 1976.

For decades, growers have relied on the FloraGro, FloraMicro, and FloraBloom system to provide flexible, stage-specific nutrition across virtually every growing method.

Built for Vegetative Growth

FloraGro is formulated specifically to support structural growth and vigorous vegetative development.

Its balanced nutrient profile promotes healthy stems, dense foliage, and strong root development before flowering begins.

Building Block Nutrition System

Instead of one fixed fertilizer, FloraSeries allows growers to adjust nutrient ratios throughout the growing cycle.

Simply change the amount of FloraGro, FloraMicro, and FloraBloom to match each stage of plant development.

Nitrogen-Rich Formula

FloraGro delivers 2% total nitrogen to support rapid leaf production and vigorous vegetative growth.

Nitrogen is one of the primary nutrients responsible for healthy green plant development.

Potassium for Strong Growth

With 6% soluble potash (K₂O), FloraGro supports overall plant vigor, water regulation, stem strength, and nutrient movement throughout the plant.

Magnesium for Chlorophyll Production

FloraGro supplies 0.5% magnesium to support chlorophyll formation and efficient photosynthesis.

Healthy magnesium levels help maintain lush green foliage and sustained plant performance.

Fully Water Soluble

The concentrated liquid formula dissolves completely in solution for rapid nutrient availability.

This makes FloraGro suitable for recirculating hydroponic systems, drip irrigation, hand watering, and traditional container gardening.

Compatible with Multiple Growing Media

FloraGro performs across a wide range of cultivation methods, including:

• Hydroponics
• Coco Coir
• Soil
• Potting Mix
• Peat-Based Mixes
• Rockwool
• Water Culture

Custom Feeding Flexibility

By adjusting FloraGro alongside FloraMicro and FloraBloom, growers can create nutrient programs tailored for seedlings, vegetative growth, transition, flowering, and fruit production.

General Hydroponics provides multiple feeding schedules for different growing methods.

Quality Controlled Manufacturing

Every batch is produced under strict quality control to maintain consistent nutrient concentrations and dependable results.

Simple Mixing Process

For proper mixing:

• Shake well before use.
• Add FloraMicro to fresh water first.
• Stir thoroughly.
• Add FloraGro.
• Add FloraBloom last if required.

Never mix concentrated FloraSeries products together before dilution.

Trusted Worldwide

FloraSeries remains one of the most recognized plant nutrition systems used by gardeners, greenhouse growers, commercial facilities, educators, and research institutions around the world.

Directions for Use

• Shake well before each use.
• Add FloraMicro to fresh water first and mix thoroughly.
• Add FloraGro second.
• Add FloraBloom last when required by your feeding program.
• Maintain nutrient solution pH between 5.5 and 6.5 for best results.
• Replace nutrient solution every 1–2 weeks in recirculating systems.
• Monitor EC or PPM regularly for optimal nutrient strength.

Guaranteed Analysis

NPK: 2-1-6

• Total Nitrogen (N): 2.0%
  • 0.25% Ammoniacal Nitrogen
  • 1.75% Nitrate Nitrogen
• Available Phosphate (P₂O₅): 1.0%
• Soluble Potash (K₂O): 6.0%
• Magnesium (Mg): 0.5%
  • 0.5% Water Soluble Magnesium

Derived from:

• Ammonium Phosphate
• Magnesium Carbonate
• Magnesium Nitrate
• Magnesium Sulfate
• Potassium Carbonate
• Potassium Nitrate
• Potassium Phosphate
• Potassium Sulfate

What's Included

• General Hydroponics FloraGro Plant Nutrient
• Factory-Sealed Container