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Vivosun StemX soluble silicon supplement bottle with green text and plant illustration.
Vivosun StemX soluble silicon supplement bottle with daffodil illustration and nutritional info.
VIVOSUN StemX 0-0-2 soluble silicon supplement bottle next to a plant and growing mediums.
Vivosun StemX Soluble Silicon Supplement for plants: boosts strength, balances pH, builds stress resilience.
Vivosun StemX: Plant before and after using silica for thicker, stronger stems.
Green leaves with text overlay: "Why Choose Vivosun" and points about enriched formula, stronger structure, stress protection, and balanced pH.
Vivosun nutrient feed chart for plants, showing ml/gallon amounts for Base A, Base B, NutriBoost, Bloom Juice, Cal+Mag+Iron, and StemX across different growth stages: Seedling/Clone, Vegetative, Early Flowering, and Late Flowering.
Vivosun StemX soluble silicon supplement bottle with green text and plant illustration.
Vivosun StemX soluble silicon supplement bottle with daffodil illustration and nutritional info.
VIVOSUN StemX 0-0-2 soluble silicon supplement bottle next to a plant and growing mediums.
Vivosun StemX Soluble Silicon Supplement for plants: boosts strength, balances pH, builds stress resilience.
Vivosun StemX: Plant before and after using silica for thicker, stronger stems.
Green leaves with text overlay:
Vivosun nutrient feed chart for plants, showing ml/gallon amounts for Base A, Base B, NutriBoost, Bloom Juice, Cal+Mag+Iron, and StemX across different growth stages: Seedling/Clone, Vegetative, Early Flowering, and Late Flowering.
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Vivosun StemX 0-0-2 Liquid Silica Plant Supplement

Official VIVOSUN Dealer Model: WEB-VSN-SX8
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  • 2.2% soluble silicon and 2% soluble potassium concentration
  • Liquid potassium silicate formula maintains stable pH levels
  • Compatible with hydroponics, soil, and coco coir feeding systems
  • 1-year warranty on consumables
  • View More Details

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THROUGH THE Cultivator's LENS Hands-On Evaluation

  • You are adding a silica supplement to your feeding schedule because you are sick of stems snapping under heavy flower weight.
  • You are looking to harden your plants against environmental stress because your grow space suffers from extreme heat spikes.

  • It mixes into a nutrient reservoir without the massive pH swings we see with some of the harsher concentrated silicates.
  • Using this consistently helps plants handle low humidity environments without losing turgidity.

  • Growers who struggled with weak branches in late bloom say they now have fewer issues with collapsing colas.
  • Users in hot climates say they noticed their plants stay upright during peak heat instead of wilting.

Vivosun StemX 0-0-2 Liquid Silica Plant Supplement

Heavy colas, fast vegetative growth, and hot, dry grow rooms all put strain on plant structure, and thin stems are often the first to bend or snap. Vivosun StemX is a 0-0-2 liquid silica supplement made with 2.2% soluble silicon and 2% soluble potassium. It reinforces cell walls so plants develop thicker stems, sturdier branches, and tougher leaves.

StemX is formulated with potassium silicate (K₂SiO₃), a readily available source of both silicon and potassium. Stronger cellular structure helps plants hold up under stresses like heat, dry conditions, and salt buildup in the root zone. Vivosun also formulates StemX to help stabilize the pH of your nutrient mix and support nutrient absorption, keeping roots active throughout the season.

Vivosun StemX is a liquid concentrate that mixes easily into your existing feeding routine, and only a small amount is needed. It works in hydroponics, soil, and coco coir, indoors or outdoors, and supports steady growth from seedling through flowering. It's available in 8 oz and 32 oz bottles.

Features

🌿
2.2% Soluble Silicon

Fortifies cell walls for thicker stems, sturdier branches, and tougher leaves.

🧪
2% Soluble Potassium

Potassium silicate supplies silicon and potassium together in one liquid.

🌡️
Stress Support

Helps plants hold up under heat, dry conditions, and salt buildup.

⚖️
pH & Uptake Support

Formulated to help stabilize nutrient mix pH and improve nutrient absorption.

🔄
Hydro, Soil & Coco

Fits any growing system, indoors or outdoors, for all types of plants.

🌱
Seedling to Flower

Easy-mixing concentrate adds to your regular feeding routine at every stage.

Specifications

Specification Value
NPK Ratio 0-0-2
Soluble Silicon 2.2%
Soluble Potassium 2%
Source Potassium silicate (K₂SiO₃)
Form Liquid concentrate
Available Sizes 8 oz, 32 oz
Growth Stages Seedling through flowering
Compatible Systems Hydroponics, soil, coco coir
Environment Indoor and outdoor

Frequently Asked Questions

What does silica do for plants? +

Silicon strengthens plant cell walls, which helps plants develop thicker stems, sturdier branches, and tougher leaves. Vivosun StemX delivers 2.2% soluble silicon to support that structure and help plants hold up under stress.

What does the 0-0-2 ratio mean? +

The ratio shows nitrogen, phosphorus, and potassium content, so StemX adds 2% soluble potassium with no nitrogen or phosphorus. That lets you layer it onto your base nutrients alongside its 2.2% soluble silicon.

Can StemX help plants under heat or drought stress? +

StemX is formulated to give plants extra support in tough conditions like heat, dry weather, and salt buildup. Stronger cellular integrity helps plants stay vigorous when their environment isn't ideal.

Which growing systems is StemX compatible with? +

StemX works in hydroponics, soil, and coco coir, for all types of plants indoors or outdoors. As a liquid concentrate, it mixes easily into reservoirs and watering solutions.

How do I add StemX to my feeding routine? +

Add a small amount of StemX to your regular feeding routine throughout the season. It can be combined with your existing nutrients to supply the silica your plants need from seedling through flowering.

How does StemX affect the pH of my nutrient mix? +

StemX is made with potassium silicate, which Vivosun formulates to help stabilize the pH of your nutrient solution and support nutrient absorption. As with any additive, check and adjust your final solution's pH after mixing.

Which size should I choose? +

The 8 oz bottle suits smaller gardens or growers trying StemX for the first time. The 32 oz bottle is the better fit for larger grows or frequent feeding schedules.

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