Looking beyond the rain-splashed sand/dirt, this ZZ plant has come back from the dead. I figured I'd killed it & kind of forgot it had been in this pot with a Sansevieria/snake plant ('Moonshine') and a piece of purple heart. Put the whole group-root-ball in ground a couple weeks ago, and that seems to have done the trick. The stump of the last leaf I cut off (because it was too awful looking to keep) is just to the left of where the new leaf is coming up.