In today’s news, this huge cannabis plant was bought at a flea market by an unknowing elderly couple in Bedford, UK, who believed that it was a kind of shrub Photograph: Bedford police/Handout

ladybird poppies (Papaver commutatum) - just one of the plant trends we’ve picked out from this year’s Chelsea Flower Show. Photograph: Jacky Parker/Alamy

The Chelsea pensioners have a tea break after climbing to the top of the pyramid at the 2012 Chelsea flower show Photograph: Oli Scarff/Getty Images

Plant of the week: White dusky cranesbill

It shines in sun or shade and is a great ground cover plant and weed suppressor

Moss typography on a building site wall. Photograph: Anna Garforth

The revolution will be composted: organic street artists talk about their work