How to Prune lesser periwinkle?
To restrict growth, cut back hard in early spring

lesser periwinkle · Vinca minor
Also known as: lady's flower; running myrtle; small periwinkle; trailing myrtle; wintergreen
Grow in any but very dry soil, in full sun (for best flowering) to partial shade. May have the potential to become a nuisance if not managed well
To restrict growth, cut back hard in early spring