How to Prune leafy rose?
Keep single-flowering shrub roses lightly pruned, removing dead, diseased, crossing and weak growth. Thin a few old unproductive stems if crowded. Prune in late summer after flowering.

leafy rose · Rosa foliolosa
Also known as: white prairie rose
Tolerant of a range of conditions but best in full sun with fertile, humus-rich, moist but well-drained soil. Mulch with well-rotted organic matter in late winter or early spring, and for best flowering apply a general rose or shrub fertiliser in early spring and again in early summer. See rose cultivation
Keep single-flowering shrub roses lightly pruned, removing dead, diseased, crossing and weak growth. Thin a few old unproductive stems if crowded. Prune in late summer after flowering.