CANNA Silica

Silicon is a naturally occurring element that plants can take up and store in their tissues, where it supports stronger structure and more resilient growth. Growers across horticultural, production and medicinal crops often add silicon because it helps plants maintain steadier growth under challenging conditions such as heat, wind or drought. It also supports firm, balanced development in stems and leaves, which is essential for maintaining effective photosynthetic surfaces. Many growers consider it as the missing element in modern cultivation.

Many plant species, including horticultural crops, production crops and medicinal plants, can take up silicon and use it to develop stronger tissues and more stable growth. Silicon is widely used because it reinforces plant structure from within and supports balanced water and nutrient handling, which in turn contributes to overall crop performance. Having silicon available helps them respond more steadily to environmental stress and maintain healthy development.

Silicon works best when supplied from early growth onwards, as it becomes part of newly formed plant tissues. Applying CANNA Silica consistently throughout the cycle ensures plants have steady access to silicon during new tissue development. When preparing your nutrient solution with CANNA Silica, start by adding CANNA Silica to the water and adjust the pH. Next, mix in your CANNA base nutrients and additives according to their instructions. After all components are mixed, check the pH and adjust it to the recommended range.

Silicon works best when supplied from early growth onwards, as it becomes part of newly formed plant tissues. Applying CANNA Silica consistently throughout the cycle ensures plants have steady access to silicon during new tissue development. When preparing your nutrient solution with CANNA Silica, start by adding CANNA Silica to the water and adjust the pH to 7.0. Next, mix in your CANNA base nutrients and additives according to their instructions. After all components are mixed, check the pH and adjust it to the recommended range.

CANNA Silica can be used with all CANNA fertiliser lines and growing media. When preparing your nutrient solution with CANNA Silica, start by adding CANNA Silica to the water and adjust the pH to 7.0. Next, mix in your CANNA base nutrients and additives according to their instructions. Apply with every watering except during CANNA PK 13/14 application for best and most consistent results.

Yes. Most liquid silicon products naturally have a high pH, and CANNA Silica raises the pH of the nutrient solution when added at the recommended rate. This pH-raising effect is an inherent property of the product and can be functionally useful as part of overall pH management. However, CANNA Silica should always be dosed based on silicon requirements rather than pH alone. After adding CANNA Silica and completing the nutrient mix, the pH must always be checked and adjusted to the recommended range before use.

For CANNA Silica, the recommended application rate is 1 to 2 ml per litre. Silicon is most effective when supplied consistently throughout the growing cycle, as it is gradually incorporated into newly developing tissues. Because CANNA Silica also influences pH, EC and potassium levels, it is important to stay within the recommended dosage and monitor your nutrient solution accordingly. A steady, controlled application provides plants with ongoing access to silicon without unnecessarily complicating nutrient balance.

Yes. Silicon does not remove stress, but it helps plants cope with it more effectively. By supporting strong cell walls and balanced water management, silicon allows plants to maintain upright growth and to grow steadily even during heat spikes, limited moisture or physical movement. Stronger outer tissues can also create conditions that enhance the plant’s ability to resist environmental pressures, providing an additional layer of natural resilience. It is a useful form of support wherever conditions shift unexpectedly.

CANNA Silica is not a pesticide. It is designed to support plant health and resilience. Some growers report observing healthier plants when using CANNA Silica. When silicon is applied consistently, this improved plant resilience can sometimes be noticeable in how plants cope with environmental pressure.

CANNA Silica combines two highly bioavailable forms of silicon, allowing plants to take up silicon efficiently and use it throughout the entire growing cycle. It is formulated to mix cleanly with CANNA nutrients and to provide consistent silicon availability in the nutrient solution. This makes it particularly suitable for soilless cultivation systems, including hydroponics and coco-based growing, where precise nutrient control is important.

CANNA Silica can be used with all CANNA additives, except for PK additives. For best and most consistent results, do not use CANNA Silica in combination with additional PK-additives. 

Yes. Provided the mixing order is correct.

Yes. CANNA Silica can be used in closed nutrient systems as long as it is mixed correctly and the system is monitored normally for pH and EC and nutrient composition.

Yes. Even in biologically rich soils, available silicon levels can vary widely. While some soils naturally contain high amounts of silicon, much of it is bound in forms that are not easily taken up by plants. Adding a predictable silicon source like CANNA Silica provides plants with a readily available form of silicon for structural support, regardless of natural variation in the substrate.

Silicon supports stronger outer tissues, which helps plants tolerate conditions such as dense canopy layering or high humidity; situations where weaker tissues may show stress symptoms faster.

Yes. Very high doses can push pH upward or disturb nutrient balance. Staying within the recommended 1 to 2 ml per litre with CANNA Silica ensures plants receive structural support without complicating your feed.

Yes. Flowering plants often carry more weight and experience rapid tissue expansion. Silicon supports strong cell walls and firmer outer layers, helping plants maintain balance and structure during this demanding phase.

Yes. High-value crops, whether grown for their structural quality, visual uniformity or the plant’s natural compound profile, benefit from stable growth and strong tissues. Silicon supports the formation of firmer stems and resilient outer layers, helping plants maintain shape and consistency even under demanding environmental conditions. Having a reliable silicon source in the feeding routine can contribute to more predictable growth behaviour across intensive cultivation setups.

Plants do not show a "true" deficiency in the same way they do with e.g. nitrogen or magnesium. However, symptoms of low silicon availability can appear as softer stems, less upright growth and more vulnerable tissues, which can show stress earlier and appear less resilient under conditions such as heat, wind, high humidity or water stress. These are indirect signs that a plant may benefit from additional structural support. Adding a consistent silicon source like CANNA Silica ensures plants have steady access to silicon during new tissue development.