Optimal growing conditions for orchid plantsThese plants thrive in bright light, but not direct sunlight in the late afternoon (although dendrobiums can handle more sun). They also need high humidity and air flow around the roots. They need regular periods of drying alternating with heavy watering. Orchids do best in temperatures above 50 degrees but below 85 degrees.
The closer you can get to creating these conditions, the more success and better blooms you will have.
Most store-bought orchids come packaged in cheap plastic pots with the roots packed in wet moss. Obviously, this violates two of the main rules of successful growth. There is no airflow around the roots, and the roots never get a chance to dry out completely. Thus the plant cannot breathe and root rot is inevitable.1
Orchid roots are highly specialized organs designed to absorb water very quickly and respire. They do not extract nutrients from the soil
After flowering is complete, go ahead and cut off the dead flower spike with sterile snippers and replant the plant. Orchids should be potted in specialized orchid pots in an orchid mix. Orchid pots have wide drainage slots so that the water literally flows through the pot. They are generally available. Orchid mix usually consists of several thick ingredients, including pine bark, charcoal, and even styrofoam.
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Source: https://tekportal.net
