In the fall, I was moving things around in my garage and noticed something odd in a bone-dry plant box that had housed some D. capensis a couple of months earlier. It had gone neglected and I never bothered to empty it out after transplanting. Well, there was a little speck of green poking up! I named it "Rasputin" and after an aphid outbreak shortly after, it has been doing very well.
Today I noticed a curl of D. binata sticking up in a pot that had been similarly abandoned after repotting and was as dry as can be and in my garage.
So I'd say that sprouting new life in a fairly dark garage in totally dry soil makes these my hardiest plants. Perhaps they don't really need as much water as we think?
Do any other plants defy the odds and surprise their owners?