Variety traits

Buddleja davidii plant height

Buddleja davidii Franch.

Plant height is a key morphological trait of Buddleja davidii, varying from 1 to 5 meters depending on cultivar genetics, climatic conditions, and the intensity of annual pruning.

In the reference 12 varieties crop Butterfly bush, where this is mentioned in the description.

For Buddleja davidii, plant height is a quantitative trait used in breeding and DUS tests. Under favorable conditions, the species is capable of reaching 3–5 meters; however, in temperate regions, due to shoot dieback, the plant often performs as an herbaceous perennial 1.5–2 meters in height.

Buddleja breeding categorizes cultivars into low-growing, reaching 1–1.5 meters, and tall-growing, reaching 3 meters or more. Plant height directly impacts agrotechnics: low-growing cultivars maintain their ornamental value without complex manipulation, whereas tall-growing types require annual spring pruning to a height of 30–35 cm to prevent basal shedding and ensure structural integrity under the weight of the inflorescences.

General information about the subject — on the page Plant height.

Sources8

Varieties of Butterfly bush mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.