Orchid Nerd Sponge Rock 1 Cubic Foot Box

🌱 Orchid Nerd Sponge Rock (Horticultural-Grade Super Coarse Perlite) Orchid Nerd Sponge Rock is a premium horticultural-grade perlite specially selected for orchid growers, tropical plant collectors, and anyone who needs superior aeration and drainage in their growing media. This super coarse, lightweight material keeps roots healthy by allowing maximum airflow while holding just enough moisture to promote strong, vigorous growth. Our Sponge Rock is clean, sterile, pH neutral, non-flammable, odorless, non-toxic, and resistant to decay, shrinkage, pests, and fungi. It is OMRI Listed for organic growing and provides consistent performance across a wide range of potting applications. 🌿 Key Features: Super Coarse Particle Size: Primarily 4–16 mesh (approximately 1–5 mm) Lightweight and porous – holds moisture without waterlogging Clean, sterile, chemically inert, and sustainable pH Range: 6.5–7.5 Moisture Content: Less than 0.5% OMRI Listed for organic growing Suitable for orchids, tropic