What is the lowest temperature a Cherry Blossom Bonsai tree shouldn't be exposed to?

I have one and I want to know what the lowest temperature is that a Cherry Blossom bonsai tree should not be exposed too? Like, I know a juniper bonsai shouldn't be exposed to lower than 49 degrees. So, I need the answer specifically for a cherry blossom one. Thank you.|||12 deg. C or 55 degrees F|||Hardy in zones 5-8. Here's the temperature scale: http://en.wikipedia.org/wiki/Hardiness_z鈥?/a>


-10 to -15 degrees F|||Some cherry bonsai can go to 10 degrees C or 50 degrees F.