General Hydroponics
GH Armor Si, Quart
Best silica supplement for growers seeking stronger, more resilient plant structures.
Fortify your plants with GH Armor Si, a potent silica supplement designed to strengthen them from the ground up. This liquid concentrate promotes robust stem and branch development, leading to stronger plant structures and enhanced foliar growth. By strengthening your plants, Armor Si improves their ability to tolerate stress, absorb light more efficiently, and boost flower production. It's compatible with various growing mediums, including Rockwool, potting mix, coco coir, peat mix, and hydroponic systems, making it a versatile addition to your plant care regimen. Enhance your plant's health and resilience with this essential nutrient.
$23.26
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4348
#50 in Fertilizers
Price vs Category Average
-62%
Below average
N-P-K Ratio
004
/ --
Who it's for
- Outdoor growers battling extreme heat or unpredictable weather conditions
- Indoor gardeners growing heavy-flowering or tall, top-heavy plants
- Serious cultivators aiming for maximum nutrient efficiency and harvest quality
Who should skip it
- Beginners who prefer a simple, low-maintenance nutrient mixing routine
- Automated system users worried about potential irrigation line clogs
- Gardeners using complex, multi-part nutrient lines prone to chemical precipitation
Performance breakdown
Structural reinforcement
Silicon fortification creates noticeably thicker stems and sturdier branch architecture.
Stress tolerance
Plants show improved resilience against heat, drought, and environmental fluctuations.
System compatibility
Highly versatile formula integrates seamlessly into any hydroponic or soil setup.
Nutrient absorption
Optimizes plant uptake efficiency for better overall metabolic performance.
Pest mitigation
Toughened cell walls provide a natural physical barrier against common pests.
Concentrate potency
High-density mineral formula ensures long-lasting value for your garden regimen.
Key Specs
N-P-K Ratio
0-0-4
Form
Liquid Concentrate
Volume
1 Quart
Brand
General Hydroponics
Fertilizer Source
Mineral Based
Nitrogen
0%
Phosphorus
0%
Potassium
4%
Features
- Strengthens plant cell walls with silicon.
- Improves structural integrity and resilience.
- Enhances resistance to environmental stressors.
- Promotes optimal plant absorption.
- Boosts overall plant vigor and health.
- Helps mitigate wilting and pest issues.
- Enhances stem and branch strength.
- Increases plant stress tolerance.
What customers say
Customers view GH Armor Si as a highly reliable foundational nutrient, consistently noting its quality in strengthening plant structure. Reviewers frequently report thicker stems and improved resistance to environmental stress, making it a staple in their feeding regimens. While silica products inherently require pH adjustments, users find the benefits of enhanced plant resilience and overall vigor far outweigh this minor complexity. It is widely considered an essential investment for maximizing crop health and quality.
Know before you buy
GH Armor Si provides supplemental silica, which strengthens plant cell walls. This results in sturdier stems and branches, helping your plants better support heavy flowers and withstand environmental stressors.
Yes, Armor Si is fully water-soluble and compatible with all hydroponic systems, as well as traditional growing media like coco coir, peat, and potting soil.
No, this product has an N-P-K ratio of 0-0-4. It is designed specifically to provide potassium and silica without adding nitrogen or phosphorus to your existing nutrient program.
By reinforcing the plant's physical structure at the cellular level, silica creates a more resilient exterior. This makes it harder for pests to penetrate plant tissue and helps the plant better manage issues like wilting and heat stress.
Armor Si is a mineral-based supplement, not a complete fertilizer. You should use it alongside your primary base nutrients to provide the necessary silica boost for structural development.
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