RAW Silica

RAW Silica — Water Soluble Silicon Powder

RAW Silica is a premium, water-soluble silicon supplement formulated to strengthen plant structure, improve stress resistance, and enhance nutrient uptake throughout all stages of growth and bloom. Containing 45% silicon dioxide (SiO₂), it offers the highest concentration of pH-neutral silicon dioxide available to home and professional growers.

Unlike potassium silicate products, RAW Silicon is derived from natural silicon dioxide and is pH neutral, meaning it does not raise pH or cloud nutrient solutions. The finely powdered formulation is flowable and suspendable in water, allowing silicon to become readily available to the plant without reacting negatively with nutrients or irrigation systems.

Silicon is classed as a beneficial element — not essential, but extremely valuable. Once absorbed, silicon embeds itself into plant cell walls, reinforcing them in the same way steel rebar strengthens concrete. This leads to thicker stems, stronger leaves, and improved overall plant resilience.

RAW Silicon also improves the permeability of root cells, allowing plants to take up water and minerals more efficiently. This increased efficiency enhances resistance to heat stress, drought, pests, and disease, while supporting healthier growth under demanding conditions.

Because RAW Silicon does not affect pH, it avoids the common issues associated with alkaline silicon sources, making it easier to maintain stable nutrient solutions. As with all RAW products, it uses clean, simple technology with no fillers, stabilisers or added water, giving growers complete control over custom nutrient formulations.

Key Benefits

• 45% silicon dioxide (SiO₂) — highest pH-neutral concentration available

• Strengthens stems, leaves and cell walls

• Improves resistance to heat, drought and water stress

• Enhances uptake of water and nutrients

• Adds a physical barrier against pests and fungal disease

• pH neutral — will not raise or destabilise nutrient solutions

• 100% water-soluble, flowable powdered formula

• No fillers, stabilisers or added water

• Compatible with all nutrient programmes and grow media