General Hydroponics
General Hydroponics KoolBloom Ripening Formula
Best ripening supplement for maximizing yields in late-stage flowering plants.
Elevate your harvest with General Hydroponics KoolBloom Dry Ripening Formula. This highly concentrated supplement is expertly crafted to boost abundant flowering and accelerate the ripening process for annual flowers and herbs. Its precise blend, rich in phosphorus and potassium, is designed for use at the end of a plant's life cycle, promoting the development of larger, heavier fruits and flowers. Trust in General Hydroponics' four decades of innovation to enhance your growing experience and cultivate extraordinary yields.
$13.99
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4348
#50 in Fertilizers
Price vs Category Average
-77%
Below average
NPK Ratio
24528
/ --
Who it's for
- Hydroponic enthusiasts using diverse growing media and irrigation systems
- Commercial growers seeking maximum flower density and harvest weight
- Budget-conscious gardeners prioritizing long-term storage and cost efficiency
Who should skip it
- Inexperienced growers prone to over-fertilizing delicate plant varieties
- Busy gardeners wanting a quick, hassle-free liquid nutrient solution
- Minimalists looking for an all-in-one fertilizer for the entire cycle
Performance breakdown
Bloom density
High phosphorus levels drive significant weight and density in final harvests.
Ripening acceleration
Effectively triggers the final maturation phase for faster, uniform crop completion.
Solubility
Fine powder dissolves quickly without clogging irrigation or hydroponic systems.
Concentration efficiency
Highly potent formula ensures a little goes a long way.
Nutrient precision
Targeted NPK ratio specifically engineered for late-stage floral development.
Ease of application
Dry format is easy to measure but requires careful mixing.
Key Specs
NPK Ratio
2-45-28
Package Weight
2.2 LBS.
Form
Dry
Fertilizer Source
Mineral Based
Nitrogen
2.0%
Phosphorus
45.0%
Potassium
28.0%
Water Soluble
True
Features
- Promotes abundant flowering
- Facilitates ripening
- Rich in phosphorus and potassium
- Helps build larger, heavier fruits
- Highly concentrated formula
- For annual flowers and herbs
- Use at end of life cycle
What customers say
Consumers consistently highlight the exceptional quality and reliability of KoolBloom Dry Ripening Formula. Users frequently note significant improvements in flower density and overall yield during the final stages of growth. Its highly concentrated dry form offers outstanding value for money, making it a cost effective solution for serious growers. This product is trusted for delivering predictable, powerful results without requiring excessive amounts of nutrient solution.
Know before you buy
You should introduce KoolBloom during the final weeks of your plant's flowering or fruiting stage. It is specifically formulated to be used as a finishing supplement to help accelerate ripening and maximize yield.
Yes, because KoolBloom is a water-soluble powder, it is compatible with all growing media, including soil, coco coir, and hydroponic systems.
At the end of a plant's life cycle, the demand for nitrogen decreases while the need for phosphorus and potassium spikes. This 2-45-28 ratio provides the specific nutrients required to support heavy fruit development and dense flower production.
KoolBloom is a ripening supplement, not a standalone base fertilizer. You should continue using your primary base nutrient program alongside it to ensure your plants receive a balanced diet throughout their entire growth cycle.
To ensure complete solubility, mix the powder into a small amount of warm water first to create a concentrate, then add that mixture to your main reservoir. Stir thoroughly to ensure the minerals are fully dissolved before watering your plants.
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$14