Strengthens plants.

Grosil improves plant strength.

  • Decreases climatic stress
  • Improves photosynthesis
  • Helps plants deal with salinity, Al & Mn toxicity
  • Lowers disease incidence

Grosil is a highly soluble source of potassium and silicon; it is used to strengthen plants by providing plant available silicon and has the advantage of low application rates.

When applied to the foliage Grosil strengthens the plant by forming a two part silicon matrix that acts as a physical barrier:

  • Absorption: Grosil is absorbed into the leaf cuticle where it strengthens the plant structure
  • Surface Protection: as Grosil dries on the leaf, it forms a layer of silicon crystals on the leaf surface.

For use as foliar spray and via irrigation in horticultural and broadacre farming.

Grosil is an NASAA certified input for organic production, and NOP compliant.

Product Pack Sizes



Typical Analysis

Silicate – 262g/L
Potassium – 143g/L
pH – 13.3 – 13.7
SG – 1.31-1.35

Directions for Use

Grosil improves leaf erectness, reduces susceptibility to lodging in grasses, and improves photosynthesis.

Crops that have demonstrated beneficial response to soluble silicate include fruit, vegetables, vines, nuts, broad-acre crops.

Optimum results are obtained when Grosil is applied in a regularly scheduled spray program, using a sufficient volume of water to insure complete coverage of all stems and foliage.

Suitable for a wide range of crops via irrigation, soil drench and foliar spray.

OFS recommends the use of a non-ionic surfactant & Humus 26.

Mixing – Add Grosil to spray tank (3/4 full) whilst under agitation. Mix thoroughly before adding other products.