A fresh, fast-draining, but water-retentive medium is essential to the healthy root system necessary for good growth. Whether a bark-based mix (which drains well, is forgiving of watering errors but breaks down rather quickly), a peat-based mix (which retains moisture well but requires more careful watering and frequent re-potting) or some inorganic, basically hydroponic method, orchids have been grown successfully in a variety of media.
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