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Paulownia tomentosa

Royal Paulownia, Empress, Princess or Foxglove Tree

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Paulownia tomentosa

Royal Paulownia, Empress, Princess or Foxglove Tree

Availability: In stock

Packet Size:100mg
Average Seed Count:500 Seeds


Paulownia tormentosa is known by many names; regardless of what you want to call it, there is no doubt about its impressive ornamental features. This beautiful tree puts on an awe inspiring show in spring. Its soft chamois velvet buds open into large violet to blue, trumpet-like blossoms which fill the air with a sweet fragrance. The flowers carried on long up curved shoots, look like large foxgloves.
The huge leaves are an architectural delight: the soft, downy, large leaves appear after the flowers have opened.

Native to eastern Asia, this exotic looking, deciduous tree is surprisingly hardy and can tolerate harsh winters, to minus 8°C (-14°F). Hardy throughout the British Isles, the buds of the Foxglove-like flowers are formed in the autumn and can be damaged by late frosts. They must be sheltered from hard frosts to ensure the violet blooms appear in spring.
It is a fast growing tree, usually grown as a specimen or shade tree. Growing rapidly (to 6ft) in it first year. In 3 to 5 years, this tree achieves what many other tree species take generations to achieve. An excellent use of this plant is the production of 'stooled' specimens giving perhaps the most magnificent of all foliage dot plants. All growth is cut down to ground level each March and the resultant suckers reduced to a single shoot. The result is a strong, erect growth rising to 10 ft. and bearing huge and handsome leaves, producing a most striking effect. In very cold zones they are often grown and cut to near ground level in autumn and grown as a large-leafed shrub the following season.
Very easy to germinate, seedlings grow rapidly, flowering in as little as 2 to 3 years under good growing conditions.

Paulownia tomentosa has been awarded the prestigious RHS Award of Garden Merit.

Sowing: Sow September to May
The seeds are very small so sow as thinly as possible to avoid crowding which leave seedlings more susceptible to damping off. Place the seeds on the surface of a tray containing well drained compost. Do not cover the seeds as light is required for germination.
Stand the tray in water to soak and either cover with a plastic dome or place the tray into a plastic bag. Temperatures should ideally not exceed 30°C (85°F) during the daytime and not below 18°C (60°F) at night. Always keep the soil mixture moist (not soaked) during the germination process. The seeds will germinate in 30 to 60 days and grow rapidly when conditions are favourable.

After germination, remove the cover or bag. When seedlings are big enough to handle (about 2 to 3 weeks), carefully transfer to pots. Grow on until they are strong enough to plant into their permanent positions. Harden off before planting out after the last expected frosts.
The tree is not very particular about soil and can be quite drought tolerant. Since the tree is such a rapid grower, it is prone to splitting and breaking in high winds, something that is not desirable in a residential setting. Plant in a sheltered position or protect from high winds.
Pruning should be done in autumn after leaf drop. prune down to where an axillary bud can take over as the single leader. Coppicing a tree annually sacrifices the flowers but produces 3m (10ft) stems with enormous leaves up to 60cm (2ft) across.

Plant Uses:
A specimen tree, shade tree, or focal point.

Native to central and western China, the tree has never been found in the wild although it undoubtedly originated in China where an old custom is to plant an Empress Tree when a baby girl is born.
The fast-growing tree matures as she does. When she is eligible for marriage the tree is cut down and carved into wooden articles for her dowry. Carving the wood of Paulownia is an art form in both China and Japan.
The Princess Tree was first brought to Europe by the East India Trading Company of the Netherlands. This trading company was responsible for bringing so many plant introductions from the Far East back to Europe.
It made a huge splash when it was brought to the America’s in the 1830’s and was planted throughout the country at that time. The exotic nature of the tree, the beautiful flowers and very fast growth made it quite popular as a tree for cityscapes as well as planting on large estates. It has since escaped cultivation and naturalised in many areas of the eastern U.S.

The genus name Paulownia honours Anna Paulowna (1795-1865), daugher of Tsar Paul I of Russia.
The species name tomentosa is from the Latin meaning having soft woolly hairs.
Pronounced paw-LO-ni-ah to-men-TO-sa. It has a number of common names, including Royal paulownia, Empress Tree, Princess Tree and Foxglove Tree.
The flowers closely resembles the Foxglove flower (Digitalis purpurea) with its large bell-shaped form.

Additional Information

Additional Information

Packet Size 100mg
Average Seed Count 500 Seeds
Family Plantaginaceae
Genus Paulownia
Species tomentosa
Synonym Paulownia imperialis
Common Name Royal Paulownia, Empress, Princess or Foxglove Tree
Other Common Names Kawakami, Royal Paulownia, Sapphire Princess.
Hardiness Tree
Flowers Fragrant lilac/blue in spring to summer
Foliage Deciduous, Large leaf. Mid Green
Height to 9-19m (30-60ft) in 25 years
Spacing to 7-12m (25-40ft) in 25 years
Position Full sun
Soil Moist, Well-drained/light
Notes Hardy, Deciduous Tree.

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