What is Bio·Grow? Bio·Grow is a liquid growth fertilizer which can be applied to most types of soil and substrate mixtures. Bio·Grow activates the bacterial flora in the substrate thanks to it basis of 100% Dutch organic sugar beet extract, commonly known as vinasse. Vinasse is syrup that contains sugar. The natural sugars and potassium in Bio·Grow are the guarantee for an ample harvest with very sweet fruit. How to use Bio·Grow Bio·Grow is a complete fertilizer for the growing period. Start with Bio·Grow as soon as the first leaves appear and the plant has a height of 10 to 15cm. Keep using Bio·Grow till the end of the fruit production. Follow our grow schedule for the best results.