Wyevale Garden Centres lists 10 pollution-tolerant plants and how to care for them: Pollution-tolerant plants Pyrus calleryana‘Chanticleer’ This ornamental pear (pictured above) is an exceptionally good tree for small urban gardens, with its upright, narrow shape and branches that are smothered with white blossom early in spring (April to May). The leaves turn a vibrant red and purple in the autumn before falling and some years, the tree will produce small inedibl
