Vermiculite is a lightweight expanded micaceous mineral.When mixed with soils, it increases aeration and drainage, which helps root development. It also helps maintain soil moisture for less watering.Vermiculite is recommended as a starting medium for rooting and germination.
- Improves nutrient holding and exchange properties of soils and potting mixes
- Improves aeration and water holding capacity of potting mixes
- Well suited for covering seeds during germination