Anisacanthus Species, Flame Acanthus, Hummingbird Bush, Mexican Flame, Texas Firecracker Plant

Anisacanthusquadrifidus

Family
Acanthaceae (ah-kanth-AY-see-ee)
Genus
Anisacanthus (uh-niss-uh-KAN-thus)
Species
quadrifidus (kwad-RIF-ee-dus)
Synonym
Justicia ligularis
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Height
4-6 ft. (1.2-1.8 m)
Spacing
24-36 in. (60-90 cm)
Hardiness
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Bloom Color
Red
Bright Yellow
Bloom Time
Blooms all year
Other Details
Category
Shrubs
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Non-patented
Propagation Methods
From softwood cuttings
From semi-hardwood cuttings
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Sedona, Arizona

Ojai, California

Tustin, California

Wilmington, Delaware

Fort Lauderdale, Florida

Bossier City, Louisiana

Conway, South Carolina

Andrews, Texas

Arlington, Texas(2 reports)

Austin, Texas(3 reports)

Beaumont, Texas

Bulverde, Texas

Dallas, Texas

Desoto, Texas

Elkhart, Texas

Flint, Texas

Fort Worth, Texas(2 reports)

Gainesville, Texas

Georgetown, Texas

Houston, Texas(2 reports)

Liberty Hill, Texas

Mcallen, Texas

Midland, Texas

New Caney, Texas

San Antonio, Texas(4 reports)

Spring, Texas

Waxahachie, Texas

Wichita Falls, Texas

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Gardener's Notes:

6
positives
2
neutrals
0
negative
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L
| March 2016 | positive

I bought 2 Anisacanthus at a local nursery last summer. They bloomed from late August into fall. The hummingbirds loved them. One was p...Read More

C
Meiners Oaks, CA | August 2013 | positive

I've grown this plant in Corpus Christi, Texas and it was a great bloomer. I now grow it in Ojai, California, inland from Ventura, about ...Read More

L
zone 7, TX | August 2008 | neutral

My plants are 18" tall and in their second year on the north side of the fence. They get all morning fullsun till about noon. Great drain...Read More

R
Wilmington, DE (Zone 7a) | January 2008 | positive

I have been able to grow this southwestern plant as a perennial in Wilmington, Delaware (Zone 7a). I planted it along my south-facing fo...Read More

F
Josephine, Arlington, TX (Zone 8a) | November 2006 | neutral

Flame Acanthus, Hummingbird Bush, Texas Firecracker Plant Anisacanthus quadrifidus is Endemic to Texas.

K
Elkhart, TX | October 2003 | positive

This plant grows great here and reseeds itself like mad. I have young plants growing all around the plant.

A
Austin, TX (Zone 8b) | September 2003 | positive

In zones 8 & 9, in Texas, Anisacanthus freezes back in winter, but not all the way to the ground. It can become spindly if grown in shad...Read More

T
T
Tustin, CA | May 2003 | positive

Supposed to be only 4-6 ft. high - it's currently about 10-12 ft high and still going strong.

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