City of Los Angeles - Department
of Public Works
Bureau of Street Services
Form -Deciduous. Informal, floriferous, rapidly growing medium-sized tree,
spreading or slightly upright to 25', with equal spread. Ascending branches
form broadly oval crowns.
Trunk -Smooth light gray becoming darker and roughened with age.
Foliage -Narrow pointed, 4 to 7" leaves are prominently veined on undersides.
Flowers/fruit -Abundant compact terminal clusters of 15- 40 large 1" Catalpa-type
flowers from white to pink bloom over a very long season, May to November.
Flowers at 3 to 4 years of age. Does not produce pods, as do both parents,
since it is a sterile hybrid.
Cultivars -'Morning Cloud', an upright and vigorous tree with very pale
pink to white flowers. 'Pink Dawn' is smaller with light pink flowers
and more spreading growth.
A significant pest problem may be powdery mildew.
Sunset zones: 3 -24.
Clearances -Suitable for 3' minimum parkways, medians or cutouts. Suitable
under utility lines.
Good for street sides, medians, parks and lawns.
Drought tolerant, single-trunked tree often producing sprouts at base.
Best flowering with high heat. Flowers are not a pedestrian hazard. Tolerant
of high winds. Shelter from ocean winds at seacoast exposures.
Hybrid between Catalpa and Chilopsis species.