Rhynchostylis Leave Problem

[Orchidtinkerer]

keep it in the range of 20-28 degrees C

Don't let it go under 18 degrees.

Sunlight is great but it varies from cloudy to bright to very bright. Either use a spot that is shaded by a net curtain, shade cloth or an indirect bright spot that never received direct sun or use artificial lighting.

Also consider if you do decide to increase the temps to avoid stressing the plant it might actually be cheaper to buy a few other types of orchids that will flower without added heat or artificial light.

I love my warm growers and will always have a place for some here but I am aware that their upkeep is a bit higher than my cool growers. I thought it worth mentioning here as it should be a consideration to help decide which orchids to keep long term in ones home.

Good luck with it

[SouthPark]

Also - are you getting the spots on the side that is exposed to highest amount of light? Any spots on the portions of leaves that don't get as much sun?

And is the spotting occurring on every leaf? Any leaves that do not have those markings?

[ETLAND]

Thank each of you very much for your replies and advises on my questions!
I will put the orchid on other place where is warmer and keep it under indirect sunlight.
Also, I will be more careful about the temprature and pay more attention on if the purple spots are spreading.
Hope this baby will survive. Will update later😉