General Hydroponics Armor Si 0-0-4 - Liquid Silicon Supplement for Stronger Plants and Stress Resistance - Quart and 1 Gallon

Armor Si 0-0-4 delivers the benefits of silicon and potassium: a soluble potassium-silicate supplement that strengthens plants, improves stature and increases stress resistance (drought, heat and cold). Use it in hydroponics, coco, soilless blends, potted plants in prepared soil or garden cultivation, as a root feed or a foliar spray.

Key Features

• Delivers soluble silicon (4.5% Si) plus 4% soluble potash, derived from potassium silicate
• Strengthens plants and improves stature so leaves are better exposed to light
• Improves stress resistance: drought, heat and cold stress tolerance
• Suitable for hydroponics, coco-coir, soilless mixes, potted plants in soil and garden beds
• Usable as a root feed or foliar spray; mild, full and maximum strength rates on the label
• Highly alkaline concentrate: always add to water first, then check and adjust pH (5.5-6.5)

How to Use

Per label: Add Armor Si to fresh water FIRST, stir while adding, then add fertilizer. Check and adjust pH to 5.5-6.5. Mild strength (young plants, perennials): 1/4 tsp per gallon (0.25 mL/L). Full strength: 1/2 tsp per gallon (0.5 mL/L). Maximum strength: 1 tsp per gallon (1 mL/L). Foliar spray: 1/4 to 1/2 tsp per gallon. Armor Si is extremely alkaline and raises solution pH; do not let nutrient pH rise above 6.5. Keep bottle tightly sealed, store in a cool dark place, mix thoroughly.

Product Details

• Guaranteed analysis: Soluble Potash (K2O) 4%. Derived from potassium silicate. Also contains non-plant food ingredient: 4.5% soluble silicon (Si) (from potassium silicate). Density 9.30 lb/gal. Caution: eye and skin irritant.
• Sizes: 1 Quart and 1 Gallon
• Made by: General Hydroponics
• Cautions: highly alkaline concentrate; add to water first and keep solution pH at 5.5 to 6.5; eye and skin irritant

Model # / SKU:
Quart: 12740DS
1 Gallon: HGC732804