How to Prune oriental poppy 'Raspberry Queen'?
Cut spent flowering stems back to the ground, unless seed heads are required. Cut back foliage as it fades in summer

oriental poppy 'Raspberry Queen' · Papaver 'Raspberry Queen'
Will thrive in most soils, as long as there is good drainage, but a moderately fertile, humus-rich soil that is not too acidic is ideal. Position in full sun and provide support, as stems can flop after heavy rain (see staking perennials)
Cut spent flowering stems back to the ground, unless seed heads are required. Cut back foliage as it fades in summer