I've finally tracked down the name of the amazing new troughs that have recently appeared on Webber Street along my route: they're
PlantLocks! The name is fairly seft-explanatory, so as you might imagine, it's a plant pot or trough that you can lock your bike to. At £155 I won't be investing in one just yet, but maybe one day when I have a little garden or courtyard I can think about having a PlantLock full of lavender or pansies by the door.
Henry propped up on a PlantLock.