SelecTree: Tree Detail

HONG KONG ORCHID TREE
Bauhinia × blakeana

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Photo Locations: Hawaiian Islands, Alameda Plazas and Alice Keck Park Memorial Garden - Santa Barbara, CA, Cal Poly State University - San Luis Obispo, CA and Los Angeles County Arboretum, Arcadia, CA

General Notes

A hybrid between Bauhinia purpurea × Bauhinia variegata.

A fruitless hybrid that blooms profusely and doesn't require as much clean up. Also, this species does not naturalize and reproduce in natural ecosystems. It is often used as a street or shade tree and ornamental planting. Exotic-looking flowering tree for frost free areas. This hybrid tree does not produce fruit. Its flowers are 5 to 6 inches in diameter, larger than on other Blakeana.

WRA score -7, NA

Has fragrant Flower.

Native to Hong Kong.

Family: Fabaceae

Synonyms

Bauhinia blakeana
Bauhinia purpurea × Bauhinia variegata.

Tree Characteristics

Spreading Low or High Canopy.

Umbrella Shape.

Has Partly Deciduous foliage.

Height: 12 - 35 feet.

Width: 20 - 25 feet.

Growth Rate: 12 to 24 Inches per Year.

Longevity 40 to 150 years.

Leaves Two-lobed, Gray Green, Yellow, Partly Deciduous.

Flowers Showy. Fragrant Pink, Purple or Rose. Flowers in Spring or Fall. Has perfect flowers (male and female parts in each flower).

Fruitless.

Bark Dark Gray or Light Gray, Smooth.

Shading Capacity Rated as Moderately Low in Leaf.

Litter Issue is Fruit and Leaves.

Tree Site Conditions & Constraints

Sunset Zones 13, 19, 21, 23, 24, H1 and H2.

USDA Hardiness Zones 9 - 11.

Exposure Full Sun to Partial Shade.

Moist Soil.

Loam or Sand Texture.

Highly Acidic to Slightly Alkaline Soil pH.

Seaside Tolerance is Not Suited.

Pests & Disease Information

Susceptible to Aphids.

Health, Safety & Environmental Concerns

Branch Strength Rated as Medium Weak

Root Damage Potential Rated as Low.

None Known Health Hazard.

Attracts Birds.

Special Uses & Values

Specimen Tree, Street Tree, Screen, Flowering Tree.

Cite this tree:
SelecTree. "Bauhinia × blakeana Tree Record." 1995-2019. Dec 15, 2019.
< https://selectree.calpoly.edu/tree-detail/bauhinia-×-blakeana >

SelecTree Nursery Connection Map
Cal Poly / ESRI