I always thought of begonias as annuals until I discovered a perrenial variety for sale in a neighborhood fund raiser 20 years ago. For a dollar, I brought home a clump and planted it. Pretty much forgot about it and for my neglect, I’ve been rewarded with year after year of spectacular masses of lovely pink flowers. Pretty awesome return on my investment! And how cool to have begonias that don’t need to be planted every year.