Green Planet Plant Guard | Liquid Potassium Silicate Supplement | 1L, 5L, 20L

Stronger Stalks. Tougher Plants. Heavier Yields.

Green Planet Plant Guard is a premium liquid potassium silicate supplement that fortifies your plants from the inside out — across every stage of growth. By building rigid, silica-reinforced cell walls, Plant Guard creates plants that are structurally stronger, more resistant to pests and disease, and better equipped to handle the environmental stresses that kill yields.

Why Growers Use Plant Guard

• Strengthens cell walls & stalks — silica deposits create rigid cellular structure that supports heavy fruits and dense flower clusters
• Boosts pest & disease resistance — silica accumulates in the outer cell wall layer, creating a physical barrier that's harder for pests and pathogens to penetrate
• Improves heat & cold stress tolerance — silica-reinforced cells are more resilient to temperature fluctuations and environmental extremes
• Supports faster, healthier growth — stronger structure means more energy directed toward growth and yield rather than stress response
• Liquid potassium silicate formula — highly bioavailable, readily absorbed by roots and transported throughout the plant
• Use across all growth stages — from early veg through to two weeks before harvest
• Compatible with all grow mediums — hydro, coco, and soil

How It Works

Silica (silicon dioxide) is one of the most abundant elements on earth, yet it's often absent or insufficient in hydroponic and coco growing environments. Plant Guard delivers potassium silicate in a liquid, plant-available form that's immediately absorbed through the roots and transported to where it's needed most.

Once inside the plant, silica is deposited into cell walls — particularly in the outer epidermal layer — where it performs two critical functions:

• Structural reinforcement: Silica-strengthened cell walls produce thicker, more rigid stalks and branches that can physically support heavier fruit and flower loads without snapping or bending. This directly translates to bigger harvests.
• Natural defence barrier: The silica layer in the outer cell wall makes it significantly harder for sucking insects, fungal spores, and pathogens to penetrate plant tissue — reducing the need for intervention and keeping your crop clean.

The result is a plant that grows faster, stands taller, resists stress better, and produces more — all from a simple, consistent addition to your feed program.

How to Use

• Apply at 0.5 ml per litre (2 ml/gallon) every feeding throughout all growth stages
• Discontinue use 2 weeks prior to harvest
• Use whenever plants are subjected to environmental stress or changing conditions
• Add to reservoir before other nutrients and adjust pH after mixing

💡 Pro Tip: Pair Plant Guard with Green Planet Root Builder and Vitathrive for a complete plant health and stress resilience stack — stronger roots, stronger structure, stronger immunity.

Available Sizes

Available in 1L, 5L, and 20L — suitable for home growers and large-scale commercial operations.