article_snippet.sent: Horticulturalists have urged people to halt the 'grey sprawl' in Britain which is seeing grass and flowers in front gardens replaced by concrete.
article_snippet.sent: More than 7million front lawns in Britain have now been paved over - raising the risk of flooding and reducing available habitats for wildlife.
article_snippet.sent: More than 7million gardens in Britain have now been paved over and The RHS
article_snippet.sent: The RHS says replace paving with plants .
highlights_snippet.sent: The RHS has warned about the 'grey sprawl' with front gardens paved over .
  
highlights_snippet.sent: Around 7million grassy front gardens have been replaced with paving .
  