Grotek Black Pearl

Grotek Black Pearl organic supplemental fertilizer in powder form that helps increase plant growth by focusing on soil quality and root nutrition. It is a mix of essential essential elements such as nitrogen, phosphorus and potassium that promote the formation of a larger root system and ensure lush inflorescences. Black Pearl contains Biochar, a carbon-rich substance that can persist in the soil for several thousand years. Biochar has the ability to absorb nutrients from the surrounding soil. Biochar acts like a hard wall sponge, keeping water closer to the roots for longer periods of time. This retention of accessible water helps plants maintain peak production during periods of stress and also encourages the biology to remain more active with longer periods of retained water in the growing soil. Black Pearl also contains seaweed extract, which greatly influences the growth and formation of a strong root system and promotes the growth of large green leaves, which ultimately ensures a quality and large crop.

Usage:
- The most appropriate use of Black Pearl is to mix the powder into the soil. As it is not water soluble, it is not recommended for use in hydroponic systems.

Dosage:
- The recommended dosage is 4 g of powder per 4 l of water.

The dosage applies when watering with fertilizer once a week and then only with water. If you water with fertiliser every time, we recommend reducing the dose to half or more.
For additional information, please refer to this Grotek manual.

The Grotek dosage tables will help you with the dosage of the fertiliser.