Can any one tell me at what temperature I should bring in my hib? I have the tropical red and live in wis. Normally I bring it in when it drops to about 50 or so at night. I have had this beauty for about 5-6 years now.

It is very large, about 7' tall by 5' wide. It is LOADED with blooms and I hate to be luggin it in and out. The day temps are now getting down into the 60's and the evenings are anywhere from high 50's to low 40's.

Just how cold will it stand? I would like for the massive blooms to continue outdoors for as long as possible...

Tammy