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The Perfect Orchid Mix: Why Coco Husk Chips are an Absolute Must
Overseas Exim | Specialist Growing Media for Demanding Plants
Orchids have a reputation for being difficult. Yet the most common reason orchid growers fail is not a lack of care — it's growing them in the completely wrong medium. Put an epiphytic orchid in standard potting soil or a peat-based mix, and it will slowly suffocate.
The solution, favoured by professional orchid growers worldwide, is coco husk chips — chunky pieces of coconut husk outer shell that mimic the conditions of the orchid's natural epiphytic habitat.
At Overseas Exim (www.overseasexim.com), we supply coco husk chips specifically graded for orchid growing.
Why Orchids Are Different
Epiphytic orchids (Phalaenopsis, Cymbidium, Dendrobium, Oncidium and others) evolved growing attached to tree bark and rock surfaces in tropical forests — not in soil.
Their roots evolved to require:
- Extreme aeration — open air around the entire root surface
- Rapid drainage — roots dry within hours of tropical rainfall
- Periodic complete drying between watering events
- Rough, textured surfaces to cling to
Standard potting soil provides none of these. It retains water, compacts, excludes oxygen, and stays moist for days — conditions that cause root rot, the primary cause of orchid death in home growing.
How Coco Husk Chips Meet Orchid Root Needs
Excellent aeration: The chunky, irregular pieces create large air spaces between them. Roots are surrounded by air even when the medium is moist.
Fast drainage: Water moves through freely within minutes of watering — replicating the fast-drying rain event of a tropical tree. The chips themselves absorb and slowly release modest moisture.
Textured surface: Orchid roots evolved to cling to rough bark. Coco husk chips have the textured surface that orchid roots naturally attach to.
Long-lasting structure: Good quality coco husk chips maintain their structural properties for 2-3 years — significantly longer than bark mixes that decompose within 1-2 seasons.
Sustainable and clean: Unlike bark-based media, coco husk chips are naturally antimicrobial, decompose very slowly, and are consistent in quality.