General Hydroponics
GH FloraMicro
Best foundational nutrient system for serious hydroponic and soil-based growers.
GH FloraMicro is the foundational component of the original Building-Block Nutrient System, setting the industry standard for superior crop quality. This highly concentrated formula delivers essential Primary, Secondary, and Micro Nutrients for enhanced yields. It is pH balanced for convenience and formulated for maximum solubility, making it ideal for both hydroponic and soil-based cultivation. Trusted by professional researchers, FloraMicro provides core elements like Nitrogen, Potassium, and Calcium to support robust plant development and improve the flavor, aroma, and potency of your harvest.
$12.99
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4348
#50 in Fertilizers
Price vs Category Average
-79%
Below average
System Type
Building-Block Nutrient System
/ Building-Block Nutrient System
Who it's for
- Gardeners seeking to prevent common nutrient deficiencies
- Commercial growers needing a scalable, reliable nutrient system
- Hydroponic hobbyists wanting to minimize daily pH maintenance
Who should skip it
- Careless users worried about staining surfaces or nutrient burn
- Beginners preferring simple, all-in-one fertilizer solutions
- Growers who struggle with precise mixing and dilution steps
Performance breakdown
Nutrient Versatility
The building-block system allows for precise customization across all plant stages.
Solubility Efficiency
Highly purified concentrates dissolve instantly without clogging delicate hydroponic irrigation lines.
pH Stability
Pre-balanced formula significantly reduces the need for frequent manual pH adjustments.
Yield Impact
Consistent delivery of essential micronutrients drives noticeably higher harvest quality and potency.
Ease of Mixing
Liquid concentrate format simplifies measuring and blending for both beginners and pros.
Professional Reliability
An industry standard trusted by researchers for decades of predictable results.
Key Specs
System Type
Building-Block Nutrient System
Component
FloraMicro (Foundation)
Nutrient Content
Primary, Secondary, and Micro Nutrients
Solubility
Highly purified concentrates
pH
pH balanced
Application Method
Soil Drench
Fertilizer Source
Synthetic
Target Plant Type
Lawn, Vegetables, Flowers, Trees and Shrubs, Houseplants
Features
- Original Building-Block Nutrient System
- Tailor nutrition to specific needs
- Enhances flavor, aroma, and potency
- Highly purified concentrates
- pH balanced for simplified mixing
- Provides core foundation nutrients
- Maximum nutrient uptake assured
- Reliable formulation for research
What customers say
GH FloraMicro is highly regarded within the growing community, primarily for its exceptional reliability and foundational quality. Cultivators trust this essential part of the Flora Series to consistently supply the necessary micronutrients for vigorous, healthy plant development across various hydroponic setups. The sentiment emphasizes its predictable performance and proven effectiveness. This makes it an indispensable staple for both new and experienced growers who demand reliable, high quality results from their nutrient regimen.
Know before you buy
No, FloraMicro is designed as the foundational component of the General Hydroponics three-part system. It must be used in conjunction with FloraGro and FloraBloom to provide a complete nutritional profile for your plants.
Yes, FloraMicro is highly soluble and pH-balanced, making it effective for both soil-based cultivation and various hydroponic systems.
FloraMicro delivers essential primary, secondary, and micro-nutrients, including nitrogen, potassium, and calcium, which are critical for building a strong foundation for plant growth.
While the formula is pH-balanced to simplify mixing, you should still monitor the pH of your final nutrient solution. Different water sources and growing media can alter the pH, so regular testing is recommended to ensure optimal nutrient uptake.
Yes, FloraMicro is versatile and safe for a wide range of plants, including vegetables, flowers, trees, shrubs, and houseplants, when used as part of the full nutrient system.
The building-block approach allows you to tailor the nutrient ratio to the specific growth stage of your plants. By adjusting the proportions of FloraMicro, FloraGro, and FloraBloom, you can provide precise nutrition for vegetative or flowering phases.
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$13