SelecTree: Tree Detail
GIANT CRAPE MYRTLE
Photo Locations: Maui, Oahu, Kona, Hilo, HI and Foster Botanical Garden - Honolulu, HI
The giant crape myrtle has a large native range, from India to Southern China, to Northern Australia and is widely grown throughout the world as an ornamental shade tree. It is briefly deciduous in winter, has shedding, flaky bark, and can grow to be a large tree. In Hawai'i, it’s often found in schoolyards, around old homes, and as a street tree where it’s beautiful flowers bloom in late spring or early summer. These trees tend to do better and flower more profusely when planted in poor soil. Lagerstroemia speciosa has a HPWRA (Hawai'i Pacific Weed Risk Assessment) score of -4 (Low Risk), and the Plant Pono link is: https://plantpono.org/pono-plants/lagerstroemia-speciosa/.
Native to India to Australia.
Additional Common Names
QUEEN'S CRAPE MYRTLE, GIANT CRAPE MYRTLE, BANABA PLANT
Rounded or Vase Shape.
Has Partly Deciduous foliage.
Height: 40 - 65 feet.
Width: 30 - 40 feet.
Growth Rate: 24 or More Inches per Year.
Leaves Elliptic, Green, Red or Purple or Bronze, Partly Deciduous.
Flowers Showy. Pink or Lavender. Flowers in Summer. Has perfect flowers (male and female parts in each flower).
Persistent, Brown Capsule.
Bark Gray, Rough.
Shading Capacity Rated as Moderate to Moderately Dense in Leaf.
Shading Capacity Rated as out of Leaf.
Tree Site Conditions & Constraints
Sunset Zones H1 and H2.
USDA Hardiness Zones 9 - 10.
Exposure Full Sun.
Well Drained Soil.
Clay, Loam or Sand Texture.
Acidic to Alkaline Soil pH.
Pests & Disease Information
Susceptible to Aphids and Scales, Sooty Mold.
Health, Safety & Environmental Concerns
Root Damage Potential Rated as Low.
Special Uses & Values
Specimen, Shade Tree, Buffer Strip or Street Tree.
Cite this tree:
SelecTree. "Lagerstroemia speciosa Tree Record." 1995-2020. Aug 14, 2020.
< https://selectree.calpoly.edu/tree-detail/lagerstroemia-speciosa >