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Green Planet

Green Planet Plant Guard – Potassium Silicate Supplement

Green Planet Plant Guard – Potassium Silicate Supplement

Regular price £9.90
Regular price Sale price £9.90
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£9.90 per litre · 1L

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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup

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Description

Cell-wall strength from a straightforward silicate supplement

Green Planet Plant Guard is a potassium silicate supplement containing 14% potassium silicate, added to increase the rigidity of a plant's cell walls. A stronger cell wall shows up as sturdier stems able to carry heavier flowers without support, and canopies that hold their structure better under stress from heat, pests or handling.

Silicate supplements are typically mixed separately before joining the main reservoir, since silica can react with other minerals if added directly — Plant Guard is no exception and should be pre-diluted before use.

Key Benefits

  • 14% potassium silicate concentration
  • Strengthens cell walls for sturdier stems and branches
  • Helps canopies carry heavier flowers without extra support
  • Supports general plant resilience under stress
  • Runs alongside any base feed, not just Green Planet's own

How to Use

  • Pre-dilute in a small amount of water before adding to the main reservoir
  • Add to the reservoir before other nutrients and boosters
  • Use from early vegetative growth through flowering

Technical Specifications

  • Active ingredient: 14% potassium silicate
  • Format: liquid concentrate, dilute before use
Feed Chart
Green Planet Plant Guard · hydroponics, coco and soil
Stage Per 1 L Per 10 L
Every feed — added to the tank before any other nutrient 0.5 ml 5 ml
Note — GreenPlanet publish this as 0.5 mL per litre of water. Always add Plant Guard first and allow it to diffuse in the tank before adding any other nutrients or additives. Adding it second turns the tank cloudy as it falls out of solution — GreenPlanet say to dump and remake an affected tank. Discontinue two weeks before harvest. Hold the solution at pH 5.8 – 6.3 and 18 – 22°C. Check pH and EC after mixing.

FREE Express Delivery on orders over £60. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.