Orchid Nerd Sponge Rock 2 Cubic Foot Box

🌱 Orchid Nerd Sponge Rock – 2 Cubic Foot Box (Horticultural-Grade Super Coarse Perlite) Need more mix for a larger growing operation or an extensive repotting project? The Orchid Nerd Sponge Rock 2 Cubic Foot Box gives you all the premium, horticultural-grade perlite you love—just in a larger, more economical size. Specially selected for orchid growers, tropical collectors, and serious hobbyists, our super coarse Sponge Rock improves root health by boosting airflow and drainage while retaining just enough moisture to fuel strong 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 delivers consistent, reliable performance. 🌿 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: L