What Is an Empress Tree (Paulownia), and How Fast Does It Grow?

The empress tree, Paulownia tomentosa, is a deciduous tree from China with huge heart shaped leaves and pale violet spring flowers, and it ranks among the fastest growing trees in temperate climates. A young tree in full sun and moist, well drained soil can add 10 feet or more in a single year before its growth slows with age.

Why does an empress tree grow so fast?

Because its very large leaves capture a great deal of light, and a young tree on open, sunny ground puts that energy into rapid height. Growth is fastest in the first several years and slows as the crown matures, with most trees settling at roughly 30 to 50 feet tall.

How fast does a cut empress tree grow back?

Very fast. Sprouts from a cut stump draw on an established root system, so they can shoot up several feet in one season and carry leaves far larger than those on the original tree.

Stopping empress tree stump sprouts takes a treatment that reaches the roots, and Stump Out Stump & Vine Killer Concentrate, a systemic triclopyr concentrate described as keeping stumps from resprouting, is one such treatment.

What are the downsides of an empress tree's fast growth?

Weak wood and spread. The wood is notably lightweight and branches can break in storms, while heavy seed crops have made the tree invasive across much of the eastern United States.

Frequently Asked Questions

What is empress tree wood used for?

Lightweight furniture, storage chests, and musical instruments, especially in Japan and China, where the tree has long been grown for timber.

Which hardiness zones suit an empress tree?

Roughly zones 5 to 9. At the colder end of that range, winter cold can kill the flower buds even when the tree survives.

Can an empress tree be kept small?

Yes, by cutting it back hard each year, a practice called coppicing. The tree responds with vigorous shoots and oversized leaves but usually does not flower or set seed.

How big do empress tree leaves get?

Often a foot or more across, and leaves on vigorous young sprouts can reach two feet or larger.