Here comes the heat

[dounoharm]

I have a back porch that I turned into a gh....it is difficult to adjust temps for sure! and I am now in texas, north of Amarillo....pretty hot up here....the plan was, in the summer leave the door open and let that keep the temp tolerable, but, with the onset of GRASSHOPPERS, that door SHUT! it has a window that is double screened in the door and a very good exhaust fan. also, I run 3 big fans constantly in the summer....I use it for my cattleyas (some riddled with chew marks now) and they are doing well....the paphs and phals are inside under lights....we plan on building a much larger gh before winter....it cost a fortune to heat that little one with electric....moral of the story....go big or go home with greenhouses...that little 6x6 one is an orchid cooker...

[estación seca]

With my evaporative cooler my temperatures are close to 80 F / 22C day and night. I don't understand why I don't have cooler night temperatures.

Intermediate orchids don't like it. I've lost all my Oncidiums except a few in poor shape and a healthy O. sphacelatum. Unless I figure out how to provide cooler summer nights, I'm done with them. Tolumnias and one Trichocentrum are fine. Things in bark would like watering every other day, but I don't have time to water that often. My Phals and Catts have wrinkled leaves much of the time. Most Dendrobiums, Vandas and Cymbidiums are fine. I only have warm-growing species and hybrids of these.

Cyrtopodium outside has been OK in temperatures up to 118 F / 48C. It gets late afternoon sun. It doesn't look great, and has not tried growing.