Another example of
Buddleja growing in unusual places. It must be one of the most tolerant species and yet it seldom becomes an invasive plant out-competing other species.
Quote:
Originally Posted by paul m
I'm always struck by the numbers of trees growing on roofs in Sheffield - usually birch or, in this case, Buddleja davidii. [In this case I think the crow was waiting for a forest to grow ...  ]
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