Forget about the garish yellow blobs you see about the country through February and March - Forsythia has several much choicer and less overwhelming species to offer. Suspensa is in effect a giant winter jasmine (to which it is related) that can be trained in as a climber, or allowed to drape itself among other vigorous shrubs, or pruned in summer to make an arching shrub.
The flowers are large and nodding and pale yellow and scattered along the branches, which, in this variety, are dark purple. Really quite choice!
3L pots ~ £9