Surely that's months away from now! Though of course I agree that if they bloomed they could be identified with absolute certainty.
Since we're already here, the more pressing question is - should they be left for the winter in their pot outside on the windowsill? Said windowsill is only about 1.5 foot above ground (it's a storage room window) so it poses no danger to anyone if it falls - but what would the putative rollers prefer?
