I can't wait till Spring so I can split it and add it to the garden borders.
I think it will grow well on the Drock side as it doesn't mind a bit of shade and it doesn't like too dry a soil.
Might try also drying some of the leaves to make bergamot tea, although you call it 'Oswego tea' after the Oswego Indians. You could also use the leaves and flowers in salads.