I should mention that Abelia has recently been split into several smaller genera. If I understand it correctly, genetic analysis has shown that a couple of other popular garden genera - Dipelta and Kolkwitzia, are mixed in with them, so they've either had to make them all one big genus, or several small ones. They seem to have gone for the latter option.
Abelia (Zabelia) triflora
A lovely Chinese deciduous species with scented Jasmine-like tubular pink and white flowers in dense heads through the summer. A tall upright shrub, but arching out, like a fountain. Very nice indeed. Perfectly hardy and easy to please.
Sold out for now
An absolute classic. The plentiful palest rosy flowers are heavily veined orange within, and held between two greenish bracts. A large arching shrub for almost any soil, including chalk in sun or semi shade.
Sorry - sold out for now
A gorgeous and very choice member of the Abelia group. A tall upright deciduous shrub, as easily grown on chalk as on acid soil, in sun or part shade. Beginning to flower in late winter, the main display is in mid to late spring. Attractive deciduous leaves and peeling papery bark. Fully hardy. rare, I think, only because it's slow to propagate.
2L pots ~ £8
Abelia (Vaselea) floribunda
A very striking species with its 2 inch long tubular bright pink flowers and small rounded evergreen leaves.
It does need shelter and warmth to flower well but is otherwise easy.