I've been growing this for a while without an idea of what it is. Help!
A closeup of one of the leaves.
Kalanchoe Gastonis bonnieri
Kalanchoe gastonis-bonnieri, aka palm beachbells (sic), has already naturalized (escaped into the wild) in Florida, so please don't let the plantlets growing from the leaves of this one add to the problem of non-natives crowding out the local flora.