If I spot something new while I'm out walking, I will often take a photo and try to find it in books or online later. Sometimes I get nowhere, so I hope to use this topic to see if anyone can help.
I first noticed the plants in this photo growing close to foxgloves near a river in North Wales. Then later I saw lots of them growing very successfully on dry stone walls - as they are here. They have small, bell-shaped creamy flowers and the largest spikes were about 3ft high, but look as though they will grow much taller.
This one has defeated me... any ideas?
