General Hydroponics ARMOR SI 0-0-4 | 2.5gal

Potassium Silicate Plant Strengthener at 2.5 Gallons

General Hydroponics Armor Si 0-0-4 is a potassium silicate supplement designed for use at all growth stages in any growing medium — hydroponics, coco coir, or conventional soil. Silicon is absorbed by plant roots and deposited in cell walls, creating a physical reinforcement that improves structural integrity, foliar development, and resistance to environmental stress.

The 2.5gal concentrate is designed for mid-to-large-scale operations and greenhouses that apply silicon supplementation throughout the growth cycle.

Key Features & Benefits

• 0-0-4 NPK / Potassium Silicate — Silicon-forward formula derived from potassium silicate, providing structural support through plant cell wall reinforcement.
• Universal Media Compatibility — For use in hydroponics, coco coir, rockwool, and all conventional growing media at any growth stage.
• Plant Structure Improvement — Silicon deposition in cell walls increases rigidity, improves stem strength, and supports foliar development.
• Stress and Tolerance Benefits — Increases resistance to heat, cold, drought, and environmental stressors throughout the growth cycle.
• Yield and Production Support — Supports flower and fruit production by building structurally sound tissue capable of supporting heavy loads.

Who Should Use Armor Si

General Hydroponics Armor Si 0-0-4 is suited to any grower who wants to incorporate silicon supplementation into their feeding program. It is particularly effective in hydroponic and coco environments where silicon is not naturally present in the media, and for crops prone to physical stress, pest pressure, or temperature extremes.

Application Notes

Add Armor Si to your nutrient solution or irrigation water before adding other nutrients. Use at all growth stages as directed on the label. For hydroponic systems, add to the reservoir first and mix before introducing other nutrients. Armor Si raises solution pH — adjust after adding if needed.

Frequently Asked Questions

Does Armor Si affect pH?

Yes. Armor Si has a high pH and will raise the pH of your nutrient solution. Adjust pH after adding Armor Si and any other nutrients.

Can I use Armor Si in hydroponics?

Yes. Armor Si is designed for hydroponic, coco, and conventional soil use. Add it to the reservoir before other nutrients to avoid interactions.

What growth stages can I use Armor Si?

Armor Si is suitable for all growth stages — from seedling through late flower. Refer to the GH feeding schedule for stage-specific dose rates.

Is Armor Si compatible with other GH nutrients?

Yes. Armor Si is designed to be used alongside other General Hydroponics nutrients. Add it first when mixing your nutrient solution.

Why is silicon supplementation beneficial?

Silicon is deposited in plant cell walls, increasing structural integrity and resistance to heat, cold, drought, and pest pressure. It is naturally available in soil but often absent in inert hydroponic media.