Lee Anne thanks for asking, LariAnn thanks for answering. I think! I hadn't realized Caladium went into true dormancy, soooo one more genus of tender "bulbs" to try.
And now for something completely different. I bought 5 different EE's (I hope) at a local hispanic market: malanga (huge tuber), yellow, white and pink yautia (long tapering tuber) and red yautia (russet burbank size and shape tuber but with very dark skin). Come August I do believe I'll be pestering LariAnn for some Xanth ID's.