Cultivars
There are many cultivars derived from this species and it is advisable to contact your local nursery for available varieties.

'Batumi Gold'
This deciduous shrub is similar to the species and produces a ball shape inflorescence (truss) that consists of large bright yellow funnelform flowers with long exserted stamens and appear from mid to late spring. It grows in USDA zones 6-9.

'Golden Comet'
This deciduous shrub grows to 3 m (10 ft) tall and wide with a glossy green leaves and forms a bushy habit. During spring it produces clusters of fragrant deep yellow funnelform flowers with long stamens up to 50 mm wide. 

It prefers a semi-shaded to a sunny position and it grows in most well-drained organic rich soils that are tending acidic. It is an ideal plant for a shaded woodland garden or is used in foundation plantings. It grows in USDA zones 6-9.