How low can you go?

[Pyro]

For a typical highlander (say N. spathulata) just how low can the temps get before the plant begins to suffer?

 

[srduggins]

My highlanders really slow down or stop growing when daytime temps stay in the 60s and night time temps go into the 40s or upper 30s. I think they will survive as long as you avoid frost.

 

[Kirkscoastalcarnivores]

for some reason my highlanders seem to be bulletproof, I let it get to 30 degrees in the greenhouse so far with no ill effects