General Hydroponics
General Hydroponics MaxiGrow Growth Stimulator, 50 lb
Best high-yield nutrient for serious indoor and outdoor crop growers.
General Hydroponics MaxiBloom is a potent, water-soluble dry concentrate nutrient designed to promote prolific flowering and fruiting in a wide variety of crops. This stand-alone formula provides complete primary, secondary, and micronutrients, ensuring superior results in both hydroponic and soil-based systems. Its pH-buffered composition supports optimal nutrient uptake, leading to increased yields and enhanced crop quality. MaxiBloom is ideal for the reproductive stage of fast-growing annuals, helping to maximize harvest potential and deliver exceptional outcomes for growers.
$119.99
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4352
#50 in Fertilizers
Price vs Category Average
+95%
Above average
Weight
54
/ lbs
Who it's for
- Commercial growers seeking long-term cost efficiency
- Gardeners prioritizing rapid vegetative development
- Hydroponic enthusiasts valuing proven industry standards
Who should skip it
- Casual hobbyists with limited storage space
- Beginners preferring the convenience of liquid nutrients
- Growers looking for an all-in-one nutrient solution
Performance breakdown
Nutrient Density
Highly concentrated formula delivers maximum impact per gram of dry powder.
Solubility Efficiency
Dissolves rapidly in water to prevent clogging in irrigation systems.
pH Stability
Buffered composition minimizes the need for constant manual nutrient adjustments.
Yield Potential
Optimized NPK ratio drives significant biomass and fruit production.
System Versatility
Performs consistently across both soil and complex hydroponic setups.
Ease of Storage
Dry concentrate format saves space compared to bulky liquid nutrient jugs.
Key Specs
Weight
54 lbs
Dimensions
12.000 × 12.000 × 15.000 in
NPK Ratio
5-15-14
Form
Dry Concentrate
Solubility
Water-soluble
Type
Water-soluble nutrient
Recommended Use
Lawn
Recommended Location
Indoor
Features
- Extremely potent formula
- Stand-alone nutrient solution
- Complete primary, secondary, and micronutrients
- pH buffered for optimal uptake
- Encourages prolific flowering and fruiting
- Increases yields and crop quality
- Suitable for hydroponic and soil-based environments
- Provides superior results on a wide variety of crops
- Provides essential elements for vigorous vegetative growth
- Supports strong stem and leaf development
What customers say
Customers consistently praise General Hydroponics MaxiGrow for its exceptional effectiveness in promoting vigorous plant growth. Many highlight its reliability in delivering strong, healthy plants across various hydroponic setups. The large 50 lb size is frequently cited as offering excellent value, making it a cost efficient choice for serious growers. Users appreciate how this stimulator consistently yields impressive results, solidifying its reputation as a dependable and economical option for maximizing plant development. This product is a staple for those seeking consistent, high quality yields.
Know before you buy
No, MaxiBloom is specifically formulated for the reproductive stage. It is designed to promote flowering and fruiting, so you should use it once your plants have transitioned out of their initial vegetative phase.
Yes, the formula is highly versatile and fully water-soluble, making it suitable for both traditional soil-based gardening and various hydroponic systems.
MaxiBloom is a stand-alone nutrient solution that provides a complete profile of primary, secondary, and micronutrients. You do not need to add additional supplements for it to be effective.
The pH-buffered composition helps stabilize the nutrient solution, which ensures that your plants can absorb the essential elements more efficiently. This consistency prevents nutrient lockout and supports healthier, more productive growth.
This product has an NPK ratio of 5-15-14. The higher phosphorus and potassium levels are specifically calibrated to support heavy flowering and fruit development in fast-growing annuals.
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