Silic Rock 1,5-0-1,7

Improves the performance of your plants

Find a store

Product information

Silic Rock is a silicium fertiliser that helps your plant against a hidden problem: silicium deficiency. Silicium improves the absorption of nutrients that are essential for your plant. Silic Rock contains silicium in a form that is easily taken up by the plant. It strengthens cell walls and increases resistance.

Dosage and use

Shake well before use. Add a maximum of 1 ml of Silic Rock per 1 litre of water (1:1000). Use this solution during the entire cultivation period each time the plants are irrigated.

ATTENTION: This product is not suitable for hydroponic cultivation methods, such as nutrient film technique (NFT), deep water culture (DWC) and aeroponics.

Silic Rock NPK

NPK fertiliser (1,5-0-1,7), SiO2 (1,0%)


250 ml, 500 ml & 1 L bottle and 5 L, 10 L & 20 L can.

Some sizes may not be available in all countries.

Yes, you can. However, it is important to dissolve Silic Rock well first before adding the other products.

Yes, Silic Rock has a very low pH value of 1.5. Handle the product with care, study the label description thoroughly before use.

Silicon mobilizes less mobile components in the soil.

Silic Rock strengthens cell walls and increases resistance through the optimal ratio of silicon and potassium.


Want to know where to buy this product? Or perhaps you’re looking for a custom schedule or just a helping hand? Our Tools have got you covered.

Grow Schedule Calculator


Substrate Selector