warm growing cyms ? minimum temperature ?s

[WhiteRabbit]

Hi Everyone!

A couple of wonderful OB members knowing how I love cyms sent me divisions.

From Melissa (shadytrake) I received Cym Sunshine Falls 'Butterball' - I potted it up and put it outdoors with the rest of my cyms - well, I came across one of these listed for sale on ebay and the description said it was a warm growing cym! oops!
Our overnight lows over the past few weeks have mostly been around 40 - frequently 38 - 39. The plant looks no worse for being outside in these temps, but I don't know if the temps may harm the plant ?

And from OB member Amandalee I received what appears to be an ultra-mini cym. It's a noid, pbulbs maybe about an inch. This too has been outside with the 'big boy cyms' and looks fine - but again was wondering if the temps could be harmful.

Thanks in advance