samantha cameron picked up a paintbrush to help at the growing zone allotment project , a community project for children and adults with special needs .
the prime minister 's wife was campaigning with conservative candidate alec shelbrooke -lrb- centre -rrb- in the seat of elmet and rothwell .
she visited the growing zone , an allotment garden project for adults and children with special needs in kippax , west yorkshire .