In article , Nick Maclaren
writes

Er, no. That applies to a great many plants, but many alpines and
far northern plants will rot if kept that high, because they can't
make use of it and the fungi and bacteria can. If they are adapted
to germinating when the soil temperature is 5 Celcius, don't push
them too far!

No, I can't tell you which - only that I have failed for that reason.

We must be lucky, virtually all of our sowings are successful at 20C.
--
Alan & Joan Gould - North Lincs.