Barbara,
to All Things Plants!
Did you by chance cut the leaves off of your Amaryllis after they finished blooming? If so, that might be the cause of no re-bloom this year. It's okay to cut the dead flower stalks after the blooms have died but the bulbs use those leaves as food for the next years blooms.
I found this at Easy to Grow Bulbs about growing Amaryllis in outdoor beds:
http://www.easytogrowbulbs.com...
And, also this information at White Flower Farms:
http://www.whiteflowerfarm.com...