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Crepe Myrtle, Crape Myrtle 'Siren Red'

Lagerstroemia indica

Family: Lythraceae (ly-THRAY-see-ee) (Info)
Genus: Lagerstroemia (la-ger-STREEM-ee-a) (Info)
Species: indica (IN-dih-kuh) (Info)
Cultivar: Siren Red
» View all varieties of Crepe Myrtles


8-10 ft. (2.4-3 m)

10-12 ft. (3-3.6 m)


4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)


USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Bloom Color:


Bloom Time:

Late Spring/Early Summer



Provides winter interest

Other details:

Unknown - Tell us

Soil pH requirements:

5.1 to 5.5 (strongly acidic)

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

Patent Information:

Unknown - Tell us

Propagation Methods:

From softwood cuttings

From semi-hardwood cuttings

From hardwood cuttings

From seed; sow indoors before last frost

From seed; germinate in a damp paper towel

By air layering

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


This plant has been said to grow in the following regions:

Belle Chasse, Louisiana

Portland, Oregon

Aledo, Texas

Dallas, Texas

Harker Heights, Texas

Richmond, Texas

San Antonio, Texas

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Gardeners' Notes:


On Apr 15, 2009, trackinsand from mid central, FL (Zone 9a) wrote:

i'm still debating on whether or not i like this one. yes, the color is beautiful but they are such SLOW growers. i'm hoping for some taller growth this year. i bought mine from ecolage but they don't handle them any more. i'm wondering if it's because of slow performance over all.


On Jul 30, 2008, vossner from Richmond, TX (Zone 9a) wrote:

trademarked as Whit VII. This is one beautiful and different looking crape myrtle. It is oxblood red, darker than Dynamite or Red Rocket.


On Dec 18, 2007, pb09 from Portland, OR wrote:

Deepest black-red flowers on a compact shrub. Blooms Aug-Sept. in
Portland, OR. Hot sun, occasional water. Brilliant red and orange fall