Normally here on the FSU campus we can expect hard freezes to knock our bougainvilleas down to the ground in the winter-but the 2012-2013 winter has been rather mild for us. Here is evidence.
We have Variegated Shell Ginger (Alpinia zerumbet) 'Variegata' that has escaped injury this year. They are hardier than the literature gives them credit for-but they normally get burnt on mild winters and frozen to the ground on hard winters.
Selloum Leaf Philodendron-Philodendron bipinnatifidum (formerly known as Philodendron selloum) is relatively dependable here but usually loses some leaves and gets some burnt during the winter. Not this winter though