October passed and one of them remained upright and frisky, mingling in with all the other plants and enjoying the company of the exotic pointy plants he discovered around him. The other though, was wilty and sad, and didn't want to mix with the other plants, but moped a little more as each night got a little colder.
Sometime mid November I brought the wilty one inside, gave him a nice glass of water with some rocks to twirl new roots into. I placed him on the sill of a window with a view out to the other plants, and he settled right into his solitary new home. I'll keep him in water for awhile, and let the new roots get strong, then maybe next Spring when it warms up he can join the hardy crowd outside!
Here are pictures of the two of them!