The hardy, low maintenance climber star jasmine (Trachelospermum jasminoides) is well behaved. It has glossy dark green leaves and, from midspring to late summer, is covered in deliciously scented white flowers. its also tolerant of light to medium frost.
Child-friendly gardens don't have to be full of garish plastic. This smart set-up includes a cedar playhouse, swing and climbing frame. The ground is covered with maintenance-free artificial grass over a rubber mat.