Bee-friendly urban wildflower meadows prove a hit with German city dwellers

Countrywide scheme is flourishing after being set up to reverse a 75% decline in insect populations

To escape the Berlin bustle on a summer afternoon, all that Derek O'Doyle and his dog Frida have to do is lap the noisy building site outside their inner-city apartment, weave their way through the queue in front of the ice-cream van, and squeeze between two gridlocked lorries to cross over Baerwaldstrasse.

Bordered by a one-way traffic system lies a bucolic 1,720 sq metre haven as colourful as a Monet landscape: blue cornflowers, red poppies, white cow parsley and purple field scabious dot a sea of nettles and wild grass as armies of insects buzz through the air. Two endangered carpenter bees, larger than their honey bee cousins and with pitch-black abdomens, gorge themselves on a bush of yellow gorse.