Daphne x rollsdorfii ‘Wilhelm Schacht’ – This cross between Daphne collina and Daphne petraea bears very fragrant purplish-pink blooms (in clusters of 10-15 flowers) in May, re-blooming summer into the fall. It is a mounding evergreen shrub with deep green leaves that prefers well-drained soils. Grows 18 to 24″ high by 18-24″ wide. Hardy to zone 6.
Daphne x transatlantica ‘Jim’s Pride’ (syn. Daphne caucasica) – A long-blooming Daphne with fragrant white (flushed pale pink) flowers starting in April, and continuing through to frost. It is a semi-evergreen shrub, losing some of its leaves in winter and going completely deciduous in colder climates. Transplant with care. Grows 3-4′ high by 3-4′ wide. Hardy to zone 5.
Daphne x ‘Lawrence Crocker’ (syn. Daphne susannae) – This cross of Daphne arbuscula and Daphne collina flowers from May to June with fragrant purplish-pink blooms that repeat occasionally when given adequate moisture. This semi-evergreen, slow growing form is a good substitute for the often difficult Daphne cneorum. Grows 12″ high and wide. Zone 6.
Daphne tangutica – An RHS Award of Garden Merit winner with fragrant white flowers (flushed pale purple to pink) borne in terminal clusters from late spring into early summer, followed by red berries. This native of Tibet and China has a dense growth habit and prefers humus rich soil. Resents being transplanted. Grows 3′ high by 3′ wide. Hardy to zone 6.
Daphne sericea – This native of southeast Europe and Turkey can be a little hard to find and bears fragrant purplish-pink flowers (up to 15 blooms in a cluster) in May (and again in September) that fade to an unusual yellowish-brown or tan colour. It is an evergreen shrub with deep green lance-shaped foliage. Grows 24-36″ high by 24-36″ wide. Hardy to zone 7.