Photo by Melody

PlantFiles: Cooley's water-willow
Justicia cooleyi

Family: Acanthaceae (ah-kanth-AY-see-ee) (Info)
Genus: Justicia (jus-TEE-see-ah) (Info)
Species: cooleyi

One member has or wants this plant for trade.

Tropicals and Tender Perennials

6-12 in. (15-30 cm)
12-18 in. (30-45 cm)

Unknown - Tell us

USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Unknown - Tell us

Bloom Color:

Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall

Unknown - Tell us

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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By lilwren
Thumbnail #1 of Justicia cooleyi by lilwren

By lilwren
Thumbnail #2 of Justicia cooleyi by lilwren

By lilwren
Thumbnail #3 of Justicia cooleyi by lilwren


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive lilwren On Aug 2, 2011, lilwren from Central, FL (Zone 9b) wrote:

Cooley's water-willow is only found on a portion of the Brooksville Ridge, an unusual region of the Florida peninsula noted for its extensive limestone outcrops and sinkholes.

It is an endangered endemic wildflower only found in three counties of Florida, Hernando, Lake and Sumter.

It is an inconspicuous plant and is easily overlooked. It grows low to the ground and has quite small flowers. I have found this in many other locations in Hernando County two of them being my last two properties.


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

Apopka, Florida
Brooksville, Florida

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