There is no such thing as "butting in", Suga. You should always feel welcome to post on any thread.
You don't have the Superbum though. You have the Platycerium bifurcatum 'Netherlands'. I have grown 100's of this variety and these plants will handle even upper 30's without problem so long as it is not prolonged. You just don't want it outside when the temperature dips below 35 F. Watch the garage though. With prolonged cold, the garage can/will be the same temperature as the outside temperature.
Check out my website for some information on growing/mounting staghorn ferns. If you need specific information not covered there, just contact me.
