Phalaenopsis orchids should be repotted every one to two years in order to replenish the orchid potting media and maintain optimal growing conditions. Phalaenopsis orchids are potted in course-cut, chunky pieces of pine bark and other materials that provide the aeration and fast drainage that these orchids need for healthy root growth. Over time, these materials break down. The particles become smaller and more compact, no longer providing the airy spaces that promoted proper air flow and good drainage. Finer particles also hold more water than large, loose particles; and compacted soils retain water longer, creating a saturated environment that can cause orchid roots to rot. When you notice orchid potting materials starting to break down, it is time to repot your orchid.
You may want to repot your orchid sooner if it doesn’t seem to be doing well. Look for these signs of trouble:
You can also watch our video on how to repot orchids here.
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