--- product_id: 587950361 title: "GH Armor Si Quart (12/Cs)" brand: "general hydroponics" price: "€ 5.57" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.pt/products/587950361-gh-armor-si-quart-12-cs store_origin: PT region: Portugal --- # Enhances stress tolerance & flower yield 0-0-4 NPK, pure silica boost Strengthens stems & branches GH Armor Si Quart (12/Cs) **Brand:** general hydroponics **Price:** € 5.57 **Availability:** ❌ Out of Stock ## Summary > 🌱 Grow stronger, bloom brighter — the secret weapon your garden deserves! ## Quick Answers - **What is this?** GH Armor Si Quart (12/Cs) by general hydroponics - **How much does it cost?** € 5.57 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/587950361-gh-armor-si-quart-12-cs) ## Best For - general hydroponics enthusiasts ## Why This Product - Trusted general hydroponics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Dosing:** Customize strength from mild to max with easy teaspoon measurements per gallon. - • **Silica Powerhouse:** Fortify your plants with essential silica for rock-solid stems and branches. - • **Long-Lasting Investment:** Highly concentrated formula means a little goes a long way—grow smarter, not harder. - • **Stress-Resistant Growth:** Boosts plant resilience to environmental stressors and maximizes light absorption. - • **Universal Compatibility:** Seamlessly integrates with Rockwool, coco coir, peat, and hydroponic systems. ## Overview General Hydroponics Armor Si Quart is an organic silica supplement (0-0-4) designed to enhance plant structural integrity and foliar development. Compatible with various growing mediums, it improves stress tolerance, light absorption, and flower production. Its concentrated formula allows precise dosing for optimal plant health and longevity. ## Description Product description General Hydroponics Armor Si (0-0-4) is an all-purpose silica supplement that helps plants achieve strong stem and branch structure and foliar development. A healthy, vigorous plant boosts stress tolerance, light absorption, and flower production. Think of Armor Si as a supplement that supports the foundation of the plant, from leaves to stems to flowers. Armor Si, works with Rockwool, potting mix, coco coir, peat mix, and hydroponics. Directions Mild strength - add 1/4 teaspoon (0.25 ml) per gallon of water; Full Strength - add 1/2 teaspoon (0.5 ml) per gallon of water; Maximum Strength - add 1 teaspoon (1 ml) per gallon of water; Foliar Spray - add 1/4 to 1/2 teaspoon per gallon of water Review: This stuff does wonders for your plants. I'm sure you could go a whole grow cycle without it however it makes such a big difference in the overall strength in the stem since it helps produce this giant kuncles on the stem of the nodes. I'm not done with my grow yet but I have no doubt that the plant will be able to support all of its flowers. Furthermore, you can use this stuff pretty sparingly so it's gonna last you FOREVER. Overall, I think it's worth the investment. Review: Works wonders ## Features - Causes serious eye irritation. - organic ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0792S9RKZ | | Brand Name | General Hydroponics | | Customer Reviews | 4.8 4.8 out of 5 stars (251) | | Global Trade Identification Number | 00793094017824 | | Item Weight | 2.4 Pounds | | Liquid Volume | 1 Quarts | | Manufacturer | General Hydroponics | | Model Number | 12/CS | | Part Number | 732802 | | Special Features | organic | | UPC | 793094017824 | ## Product Details - **Brand:** General Hydroponics - **Item weight:** 2.4 Pounds - **Liquid volume:** 1 Quarts - **Special feature:** organic - **UPC:** 793094017824 ## Images ![GH Armor Si Quart (12/Cs) - Image 1](https://m.media-amazon.com/images/I/41vx7TUpWDL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***Y on 15 July 2025* This stuff does wonders for your plants. I'm sure you could go a whole grow cycle without it however it makes such a big difference in the overall strength in the stem since it helps produce this giant kuncles on the stem of the nodes. I'm not done with my grow yet but I have no doubt that the plant will be able to support all of its flowers. Furthermore, you can use this stuff pretty sparingly so it's gonna last you FOREVER. Overall, I think it's worth the investment. ### ⭐⭐⭐⭐⭐ Review *by E***N on 24 June 2025* Works wonders ### ⭐⭐⭐⭐⭐ Review *by B***T on 27 February 2026* A lot of silica additives are the same as their purpose is to help increase the strength of the stalk’s cell walls. I’ve tried several brands and keep going back to this one. Something tells me it just blends with my recipe better than many other brands, possibly the additional potassium but it seems to be more compatible than Advanced Nutrients Rhino Skin (which I really, really like and still use when I can’t get this) and Botanicare Silica Blast (just below Rhino Skin imo and is my third string silica). After many runs of each brand and a couple not named, I’ve pretty much settled on Armor Si. ## Frequently Bought Together - GH Armor Si 0-0 - 4 GH Armor Si Quart (12/Cs) - General Hydroponics CALiMAGic 1-0-0, Concentrated Blend of Calcium & Magnesium, Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Quart - General Hydroponics Liquid Kool Bloom Fertilizers, 1-Quart --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/587950361-gh-armor-si-quart-12-cs](https://www.desertcart.pt/products/587950361-gh-armor-si-quart-12-cs) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-23*