A Smarter Way to Grow: Semi-Hydro Growing Made Simple Semi-hydro growing is one of the most exciting and effective ways to grow houseplants at home, especially if you want faster growth, stronger roots and far less day-to-day maintenance. Available Grades Fine Semi-Hydro (2–5 mm) – ideal for smaller pots, young plants and fine root systems Coarse Semi-Hydro (4–10 mm) – perfect for larger plants and thicker root structures Why Grow in Semi-Hydro? Encourages extremely fast root development Allows rapid water and nutrient uptake Makes sensitive or “fussy” plants much easier to care for Reduces watering frequency thanks to a built-in moisture reservoir Creates a clean, pest-resistant growing environment Excellent for propagation and long-term plant growth Recommended For Anthurium, Monstera, Pothos, Philodendron, Strelitzia and many other tropical houseplants with fine to medium root systems.