1x Buddleja davidii 'Royal Red' (approx) 6-8 inches in height, and sent in a 1 Litre plant pot. 'Royal Red' is a large deciduous shrub with arching branches of lance-shaped leaves, whitish beneath, and long panicles of rich purple-red, scented flowers. This butterfly bush produces some of the largest blooms currently available, the honey-scented flowerspikes can grow up to an impressive 50cm (20in) long. This shrub has an ultimate height and spread of 2.5-4 metres. This flowering shrub is hardy in all of UK and northern Europe, as it can withstand temperatures of -15°C to -20°C.