Scientific Name:
Paulownia tomentosa
Pronunciation:
paw-LOE-nee-uh toe-men-TOE-suh
Common Name:
princess tree, empress tree
Family Name:
Paulowniaceae
Plant Type:
Tree - deciduous
Key ID Features:
Leaves large, heart-shaped, most blades 12-25m long x 10-23cm wide, margins entire or occasionally 5 tooth or with shallow lobes (juvenile foliage), peach fuzz on underside, petioles up to 20cm long; bark has stretch marks; inflorescence panicle with large showy, violet-purple florets about 5 cm wide. Winter ID: flower buds large, fuzzy, in clusters; persistent brown, oval, pointed capsules about 3.5cm long x 2.5cm wide that partially split open in half.
Habit:
Dense, Spreading
Form:
Round
Texture:
Coarse
Mature Height:
10 - 15m
Mature Spread:
10 - 15m
Growth Rate:
Fast
Origin:
S.E. Asia / Japan / China (China)
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Full sun, Part sun/part shade, Sheltered
Soil/Growing Medium:
Well-drained
Landscape Uses:
Specimen plant
Additional Info:
Leaf Morphology:
Form:
Simple
Arrangement:
Opposite
Texture/Venation:
Soft flexible, Pinnate venation, Palmate venation
Surfaces:
Pubescent, Tomentose
Colour in Fall:
Green, Yellow
Shapes:
Ovate
Apices:
Acuminate
Bases:
Cordate
Margins:
Dentate, Entire, Palmately lobed
Inflorescence Type:
Panicle
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Bilabiate
Ovary Position:
Superior
Colour (petals):
Showy, Yellow, Violet
Flower Scent:
Sweet
Flower Time at Peak:
Apr, May
Fruit Type:
Capsule
Fruit Colour:
Brown
Fruiting Time:
Jul, Aug
Additional Info:
Showy, Persistent
Bark Morphology:
Lightly fissured, Single stem trunk
Bark or Stem Colour:
Dark Grey, Brown
Leaf Bud Type:
Superposed
Leaf Scar Shape:
Round
Propagation:
Seed, Division - above ground parts
Maintenance:
High
Pest Susceptibility:
Dieback, Fungal leaf spot, Heart rot, Root rot
Course(s):
- HORT 1155
Location(s):
- (ONE) Overpass North side East : 667
- (SQC) SeQuoiadendron Courtyard : removed Oct.'13