Gardening for free - what plant would you love someone local to give you?

Inspired by a lovely visit to Mara today (who posted last week about various cuttings and seedlings she had to give away) I was thinking how great it would be if there was a way of letting people know what plants you were after, just in case they had any to spare. Especially now, as people start weeding and pruning.

So, just to get the ball rolling, I don't suppose anyone has a spare Erigeron karvinskianus seedling? I've wanted some for ages and can't find it at any local garden centre? I can offer hellebore seedlings, foxgloves or a geranium phaem ...