Bi-Growmix is a high quality substrate. Its composition is well balanced for optimum development of a wide variety of plants. Bi-Growmix is a mix of many types of high quality peat and coco fibres.

An important feature of Bi-Growmix is its air/water ratio. The gaps present in Bi-Growmix may be filled with water and air. Thanks to the coco fibres, gaps filled with air take in a higher volume, which means more oxygen benefits for the plant. Bi-Growmix does not retract and easily absorbs water. Nutrients are gradually released and are thus constantly available for the plant.  The presence of coco fibres facilitates root development.

As far as the amount and ratio of the fertilizers is concerned, this substrate can be considered as medium, between Janeco-Light-Mix (lightly fertilized) and Kilomix (heavily fertilized).

Because the Bi-Growmix is pre-fertilized you don’t need to add any nutrients during the first weeks of the cultivation, depending on how many plants and pot size. After this starting period Atami advises to add liquid fertilizer to the nutrient water for optimal results.