What is the best soil for orchids?
Written by
Michael Sullivan
Reviewed by
Prof. Samuel Fitzgerald, Ph.D.Orchids need special soil for survival and to flower well. The ordinary potting mixtures stifle their roots, and they soon die. The best soil for orchids is composed of materials so balanced that it cannot help but be a perfect medium for their use. Here are recipes for various mixtures.
Drainage Materials
- Orchid bark chunks create air pockets for roots
- Perlite improves water flow through the mix
- Lava rock provides permanent drainage structure
- Avoid fine sands that compact over time
Moisture Controllers
- Sphagnum moss holds water in dry climates
- Coconut husk retains moisture without sogginess
- Water crystals help in extremely arid zones
- Use sparingly in humid environments
Health Boosters
- Charcoal filters toxins and prevents odors
- Nutrient-rich additives feed roots slowly
- Fungal prevention components for wet climates
- Always sterilize components before use
Creating a mix means understanding the materials that go into it. Start with 70% drainage material, such as bark chips or rock. Then, based on your humidity, 20% moisture controllers. Finally, add 10% health boosters. I test every mix before putting an orchid in it.
Climate will dictate your best mix. Arid climates need more moisture retention, while humid environments will require the most drainage possible. As the weather changes from season to season, I adjust my mixes accordingly. Your orchids will let you know with robust growth.
Avoid making soil errors, such as the tedium of using regular potting mix. Repot your orchids as you notice roots that outgrow their containers. Select biodegradable materials and sustainable choices whenever possible. The soil you choose will contribute to beautiful blooms year after year, thanks to your caring touch.
Read the full article: Best Soil for Orchids: Expert Guide
