. I pot my Cymbidiums in half bark and half potting soil mix, grow them in the sun, leave them out all winter unless it is going to go below freezing, They are potted in both large clay and large plastic pots. The roots don't like to dry out completely so they are usually moist. The cold and sun make them bloom like crazy, also the natural winter shorter day length. I am in one 7B.
Another good way to fertilize...use the fish bowl or aquarium water to water your orchids when you change the water and they will grow like crazy. I have polywogs of tree frogs (they lay eggs In the swimming pool) and they grow to maturity In a big pan next to the swimming pool. This water is also great.
Yes especially jan-feb we get one really good snow storm last few years that last a week.
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I currently have them sitting in my window sill w hydroton around the bases and in cups beside them full of water to help w humidity needs I close my curtains and they so far seem happy.