The wallflowers arrived in a sorry looking state, I'll try to upload a photo. I planted them immediately but they've not perked up yet. Possibly they will, but when weak and not growing they are vulnerable to slugs. It would be fairer to ask for a review in spring but this silly request for immediate review means I have to guess now about how they will do.
It seems that Thompson & Morgan use a combination of two transport companies to deliver their plants, which makes delivery slow.