Botanical Name: Catalpa speciosa
Common Name: Western catalpa
Type of Plant: dicot: tree
Character deciduous
 
Habit of Growth:
Overall Shape a large, erect, single-trunked tree, with an oval to rounded canopy; can be rather loose and irregular in growth if not trained by pruning; can be massive in its natural habitat
Height 40'-70'
Spread 3/4 to equal
Growth Rate rapid
 
Environment:
Exposure outdoors full sun preferred, but tolerates partial
Soil tolerates most except highly alkaline soils
Hardiness hardy (all zones): thrives in hot sunny locations
 
Morphology:
Leaves pinnate, opposite, broadly ovate-cordate; blade is 6"-12" long; blade dark green above, soft -pubescent beneath
Flowers whitish, showy, trumpet-shaped, spotted with purple and yellow spots; about 2" long, in open 4"-6" long panicles; April-July
Fruit a capsule; 8"-18" long, cylindrical
 
Propagation:
seed
 
Usage:
a large accent tree used for its flower display and large foliage; a suitable shade tree for large-area landscapes; messy (flower, fruit and leaf drop)
 
Landscape Care:
Watering moderate is preferred; tolerates some drought after established
Fertilizing balanced in spring; check for chlorosis
Pruning stake and head high when young; develop a high canopy
Pests/Diseases relatively free
Special Conditions/Other Central
 
Origin: United States
Family: Bignoniaceae

Notes:
 
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