Many orchid plants

January 13th, 2010 by admin

Most orchid roots are adapted to being exposed to air and harsh conditions, but cannot tolerate being wet for more than a day or two. Some orchids are even grown in pebbles mixed with bark. Both materials are sometimes mixed with peat and perlite or vermiculite. Fresh pine bark is also a popular medium but is usually mixed with other amendments before use. The tough, wiry fibers break down very slowly and is an ideal orchid delivery potting medium. This fiber comes from the roots of the Osmunda fern that is native to Australia and the Pacific. Many orchid plants are grown in osmunda fiber. The overall consideration is to provide structural support for the orchid roots, but also to provide lots of air spaces between medium particles.

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