Weekend readers' best photographs: sowing

'A tractor on a field in the South Downs near Brighton prepares for a late winter sowing' Photograph: Finn Hopson

'A dandelion about to sow its head of seeds against a Lincolnshire sunset. More weeding for the summer in prospect!' Photograph: Ian G Patterson

'A nuthatch enjoys the seeds we had sown for him on a cold winter’s day.' Photograph: Ann Mulelly

'This plant, in Polis, Cyprus, is going to rely on the birds and the wind for sowing a thousand more copies' Photograph: Chris Burgess

'A new bracken shoot emerges from the dried up remains of last years leaves.' Photograph: Yasmin Hussain

'Lettuce lines. Taken at the botanical gardens in Madrid. I loved the way that not only were the flowers arranged beautifully, but so were the vegetables' Photograph: Nancy Evans

'A potato field in Clifton-on-Teme, Worcestershire. Not just sowing the seeds but a work of art by the farmer !' Photograph: Picasa 2.7/Ann Finn