Did you ever wonder how an orchid's roots can travel right through a seemingly solid cork mount, aren't bothered at all by the abrasive surface of bark chips or clay aggregates, or how they attach themselves so well to flower pots and slabs, no matterhow smooth they may be?The answer lies in the fact that the roots don't "move" at all, but grow and fill in spaces on the contour of the surface with newly-created root cells instead, extending the length and girth of the root as it goes. The following graphic is a crude depiction of the process.
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