Pro Powders Silica Potassium Silicate
Best nutrient supplement for growers seeking stronger, more resilient plant structures.
Elevate your plant's health with Pro Powders Silica Potassium Silicate, a premium, water-soluble powder designed for robust growth and resilience. This high-purity formula delivers essential potassium and plant-available silicon, enhancing structural integrity and boosting tolerance to environmental stressors. Suitable for hydroponic, soilless, and traditional soil applications, it provides a 100% bioavailable source of silicic acid. Ensure optimal nutrient uptake and vibrant plant development with this versatile and effective fertilizer.
$17.30
Owner Satisfaction
4.6
/ 5
Category Rank
1940
/ 4448
#1940 in Fertilizers
Price vs Category Average
-72%
Below average
Fertilizer Grade
0033532
/ -- with % SiO
Who it's for
- Gardeners managing plants in harsh or unpredictable climates
- Efficiency-focused growers maximizing their fertilizer investment
- Fruit and flower enthusiasts seeking larger, healthier yields
Who should skip it
- Beginners uncomfortable with frequent pH monitoring and adjustment
- Hydroponic users wanting a low-maintenance, clog-free irrigation system
- Growers preferring a simple, flexible nutrient mixing routine
Performance breakdown
Structural reinforcement
High silica concentration significantly fortifies cell walls against environmental stressors.
Solubility efficiency
Dissolves cleanly for seamless integration into complex hydroponic nutrient reservoirs.
Nutrient bioavailability
Rapidly accessible silicic acid ensures immediate uptake for developing plant tissues.
Purity standards
Minimal heavy metal and chloride content protects sensitive root systems.
Application versatility
Performs equally well as a foliar spray or soil drench.
Concentration density
Potent 0-0-33 formula delivers high-impact results with smaller application volumes.
Key Specs
Fertilizer Grade
0-0-33 with 53% SiO2
Guaranteed Analysis
33.0% Soluble Potash (K2O)
Contains
53.0% Soluble Silica (SiO2)
Derived From
Potassium Silicate
Weight
50 lb. bag
Purity
Low in sodium, chloride, and heavy metals
Fertilizer Source
Mineral Based
Nitrogen
0.0%
Features
- Supplies soluble potassium and silicon
- Enhances plant structural integrity
- Boosts tolerance to environmental stress
- 100% bioavailable silicic acid source
- Ideal for hydroponics and soil
- Water-soluble for easy application
- Supports upright growth
What customers say
Customers consistently highlight the exceptional quality of Pro Powders Silica, noting significant improvements in plant resilience and structural strength. The primary theme is efficacy; users see tangible results quickly, especially in high stress environments. While some silicate products are notoriously difficult to dissolve, users generally find this formulation mixes reasonably well, contributing to its high perceived value. It is seen as a reliable staple for serious growers seeking robust plant health.
Know before you buy
The high concentration of plant-available silicon strengthens cell walls, which helps stems grow thicker and more upright. This structural reinforcement allows plants to better support heavy blooms or fruit and improves their overall resilience.
Yes, this is a fully water-soluble powder designed for easy mixing. Because it is highly refined, it dissolves cleanly into your nutrient solution, making it safe for use in hydroponic systems and drip irrigation.
No, this is a specialized 0-0-33 formula. It is designed specifically to supplement potassium and silica, allowing you to adjust your nutrient regimen without adding extra nitrogen or phosphorus.
Yes, it can be applied as a foliar spray or a soil drench. When applied to leaves, the silicic acid is absorbed directly, providing a quick boost to the plant's environmental stress tolerance.
The 33% soluble potash (K2O) supports essential plant functions like water regulation, enzyme activation, and nutrient transport. It is particularly beneficial during the flowering and fruiting stages to promote development.
No, this is a mineral-based, high-purity synthetic fertilizer. It is not certified for organic gardening.
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