Last night I spoke to friends who live just a few miles from Hannibal, NY, and they also have flowers on their caladiums.
Since caladiums aren't easy to hold over winter why not let them flower? Saving the bulb's energy would be more important if it impacted leaves and blooms for next year but in many areas of the country they are treated as an annual and discarded by the end of September when cool weather arrives.
Those do look great.
Did have a LR yesterday and found the Edy's 1 for 2 sale on ice cream,I am done in,cousin is an enabler of the worst sort.
I have seen some really nice gardens and will post carefully selected albums when I get home on Tuesday.