I have 4 Greek Church cuttings that I potted up. They have just a few small leaves, and fair roots. My question is; how hot can they get before it's detrimental. The window I have space for them regularly gets 85-90. Is that too hot?

The temperature should be okay if the humidity is high enough to prevent the cuttings and young trees from drying out.  Home heating is very dry.

[QUOTE=dkirtexas]The temperature should be okay if the humidity is high enough to prevent the cuttings and young trees from drying out.  Home heating is very dry.[/QUOTE]
The humidity should be ok. I have plastic bags over the top. Humidity looks to be 67% or so. I moved them though. Temps were getting to be about 92f in the bag. Don't want to take a chance with my very first cuttings!

[QUOTE=ThaiFig]My daily temps vary from 75F at night to 95F by mid afternoon.  At 95 I don't expect I'm getting much root growth.  But it's not killing the cuttings either.[/QUOTE]
Good to know, since some of my cuttings will have to go in the window. No other space for them pretty soon.

I have rooted cuttings with my max temps hitting 85-87. If the pots or soil starts feeling to hot you can always wrap the cups with something.

If you water during this peak time it may help to cool them.