Choisya × Dewitteana White Dazzler (‘Londaz’) (PBR)

This compact Mexican orange blossom has fine, almost filigree foliage, which is retained throughout the year, but from mid- to late spring, is almost smothered by the scented white flowers. It is also not unusual for a second (less prolific) flush of flowers to appear in late summer. Great in patio pots or shrub borders, it can also be used to make an interesting informal hedge or low screen.