I am looking for wildlife friendly climbers to add to my wildlife garden. I realise that some people can’t stand ivy, and see it as a nuisance, but I know it can be great for native wildlife. The thing is, it’s only really good once it is mature and producing flowers and berries. Does anyone know where I can purchase a mature ivy plant, or can anyone suggest a climber that could fill the same niche, ie late nectar for invertebrates and berries for birds? Thanks.