PRO‑MIX® BX AGTIV REACH is a general-purpose, peat-based growing medium that is formulated with a base of high-quality Sphagnum peat moss and perlite. This blend creates a well-balanced environment to encourage root development and favor plant growth. PRO‑MIX BX AGTIV REACH contains a beneficial endomycorrhizae that improves plant growth.