Buddleja are a common sight on industrial estates or wasteland as they seed prolifically and are very hardy, being able to survive through dry conditions and exposed conditions.
The shrub is also commonly visited by wildlife, with bees and butterflies being attracted to the flowers for nectar, and birds able to nest in mature shrubs.
Planting should be made in a location that receives full sun, though the shrub can be sited in part shade. It is also happy in any soil type as long as it is well drained.
One common issue with Buddleja is that a failure to prune results in flowers only appearing at the top of the shrub, leaving a generally messy appearance. It must be pruned each Spring to within two or three buds of the ground on small shrubs, and more on larger ones depending on the size requirements.
The most common variety of Buddleja is ‘Davidii’, with long cone shaped flower heads which are available in a number of colours. ‘Globosa’ is an evergreen variant of Buddleja with ball shaped flower heads though it is less frequently seen.