Exeter RAM Museum is running a competition for photographs of wild plants in wild unusual urban places:
"Inspired by Exeter's famous plant hunters, the Veitch family, we’ve joined forces with Toby Buckland's Garden Festival for this Plant Hunter competition.
Be a Plant Hunter by sharing photographs of your own discoveries of plants in strange places on Instagram or Tumblr.
Take a picture of a plant in an unusual place, whether it's growing up a mountain, between paving stones or dangling from a bridge. View weeds in a new light and keep an eye out for exotic plants in strange places."
Winners get a chance for a cup of tea and garden chat with Toby Buckland, or a copy of An International Garden Photographer of the Year book.
More details at http://exeterramm.admit-one.eu/?p=eventtimes&ev=25009