Most Heat Tolerant Firs
I've seen many threads in the past talking about growing firs outside their normal range. At the local nursery this week and I noticed a bunch of abies nordmanniana. I know that abies firma is a popular choice for heat tolerance. abies concolor also has some heat tolerance. How to these 3 compare and what others are there? I'm only interested in trees I can get, I don't want to search the world for some extremely rare species. With so many nordmanniana at the nursery, someone here must be growing them. I'm sure nothing including firma will grow well in the open sun here in OK, but with some shade, will they perform, or are they a total waste of time?