How Do The Christmas Cacti Know?!

The two at the library always bloom for the month of December.  Its remarkable.  Every year.   The lovely flowers are such a bright, wonderful contrast to the snowy cold and icicles.  Its like a hint of spring for the winter solstice.  They makes me happy.  

This cactus has two colors of blooms this year.  Its never done that before.  I think its pretty terrific.  I like the salmon-orange colored blossoms best of all.