Cymbidium care
Cymbidiums are pretty hardy orchids but will need some help to survive your summer temperatures. Place them where they will be under 50-70% shade from about 10 AM to about 4 PM. Once temperatures regularly go over 75F, water more frequently such as every 3 to 4 days in the morning and when it goes over 90F water every other day. There should be good air circulation around them (important at all times but especially during hot weather) and try to not crowd them too closely, leaving at least one foot (two feet is better if you have the space) between pots. Feed them a dilute mix of a good balance type orchid fertilizer once or twice a week. To prevent possible heat damage to leaves (if leaves feel very warm they are on the verge of being damaged), it helps if you can mist the leaves once or twice a day when it is over 90F.
Not sure what you have them potted in or when they were last repotted, but it would be a good idea to check them to see if the potting medium is still okay or needs replacement. With more frequent waterings, it should be in very good condition to allow air to circulate through the mix to help it dry out between waterings and prevent root rot because it doesn't.
Hope this has helped.
Jim
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