
A Chinese tree with purple foxglove-like flowers before the leaves in April-May, rich in nectar for spring build-up; its buds can freeze in harsh winters.
The foxglove tree is a very fast-growing, large-leaved tree from central and eastern China; in Europe and Turkey it is planted as a park tree and, in recent years, as timber plantations, mostly with cultivars of hybrid origin. Its purple-lilac, fragrant, thimble-shaped flowers give plenty of nectar, and honeybees and bumblebees visit them intensively.
It flowers for about 3-4 weeks in April-May, before leaf-out. The flower buds form the previous autumn and overwinter unprotected; in very cold winters they can be frozen, wiping out the flowering.
Although paulownia honey is mentioned in some countries where plantations are widespread, it is not a common commercial monofloral honey; its contribution usually goes into mixed spring honey.
It is considered invasive in North America, and in European towns it is also seen spreading on its own. If a plantation is to be established, non-seeding cultivars should be preferred.