After the trip to Königssee, I was inspired to retail therapy and bought myself as many butterworts as Hampshire Carnivorous Plants could supply:
OCPD butterwort collection (Pinguicula cv. Tina, P. cv. Wesser, P. agnata, P. cyclosecta, P. esseriana)
They did me proud over this summer, with two of them flowering despite the root disturbance (on which butterworts are not keen), the chunky cultivar ‘Tina’:
Pinguicula cv. Tina flowering
and the daintier species P. esseriana
In winter, a lot of butterwort species give up on making large, sticky, carnivorous leaves, and instead produce compact non-carnivorous rosettes that look a bit like houseleeks:
Pinguicula cyclosecta winter rosette, remains of carnivorous summer rosette slowly composting away
Carnivory is not free, so this is probably an adaptation to the lack of insect prey
available during the winter months.
When I grow up I want one of these.