Product Description Westland Houseplant Potting Compost Mix is a specially blended mix for potting or re-potting most indoor pants including cacti and bottle gardens. This open free draining mix promotes healthier growth and greener leaves for an outstanding indoor garden. This product also contains Seramis clay granules producing an open structured potting mix that help manage the moisture level of your compost. The Seramis granules in this mix work by absorbing water and releasing it back to the plant when needed for optimum water and nutrient availability. Finally, to improve this mix further it also contains perlite for increased airflow and drainage resulting in healthier root development and ultimately a stronger healthier plant all round. This is a specialist blend that can be used by anybody who wants a strong and healthier plant that is provided with optimum water and nutrient availability. The added Seramis granules do a fantastic job at regulating the plants water intake to ensure optimum water and nutrient availability. The added perlite in this mix generates airflow and drainage resulting in healthier root development which intern improves the health of the whole plant. This 4L bag will fill a 14cm pot.