Biovita Volcanic Pumice 4–15 mm 5L – Huokoinen hohkakivi kasvualustaan

Biovita Volcanic Pumice is a natural, volcanic pumice with a particle size of 4–15 mm, used to improve soil structure, airiness, and moisture management.

• The description claims that it helps maintain even moisture while increasing root respiration.
• The description claims it can be used as an additive in soil or as a substrate under plants.
• The description claims it supports optimal plant root development.