Ruellia, Brazilian Petunia, Elegant Ruellia, Wild Petunia 'Ragin' Cajun'

Ruellia elegans

Family: Acanthaceae (ah-kanth-AY-see-ee) (Info)
Genus: Ruellia (roo-EL-ee-uh) (Info)
Species: elegans (ELL-eh-ganz) (Info)
Cultivar: Ragin' Cajun



Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Sun to Partial Shade



Foliage Color:

Unknown - Tell us


12-18 in. (30-45 cm)


15-18 in. (38-45 cm)


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)

USDA Zone 11: above 4.5 C (40 F)

Where to Grow:

Unknown - Tell us



Bloom Color:


Bloom Characteristics:

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

Bloom Size:

Unknown - Tell us

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Late Fall/Early Winter

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

From herbaceous stem cuttings

From seed; direct sow after last frost

Seed Collecting:

Collect seedhead/pod when flowers fade; allow to dry


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

Fairhope, Alabama

Seale, Alabama

Navarre, Florida

Umatilla, Florida

Barbourville, Kentucky

Baton Rouge, Louisiana

Florence, Mississippi

Cary, North Carolina

Cincinnati, Ohio

Camden, South Carolina

Conway, South Carolina

Sumter, South Carolina

Aransas Pass, Texas

Austin, Texas(2 reports)

Belton, Texas

Copperas Cove, Texas

Fort Worth, Texas

Houston, Texas

show all

Gardeners' Notes:


On May 11, 2012, Sandwichkatexan from Copperas Cove, TX wrote:

Purchased 20 of these this year . This is my first year growing them . Hopefully they will all come back next year . I put them in every flower bed as accents to yellow bush daisies . (euryops) . I want to attract as many hummingbirds as I can so between the new native honeysuckles , these , and the Uruguayan firecracker plants hopefully I will have a hummingbird sanctuary ! I was surprised how well they took the trip in the mail from the nursery . Not a single yellow leaf and a few of the plants had lots of blooms on them . If they are this tough they are sure to be garden stars this year .


On Jan 23, 2011, bubuli from Cary, NC wrote:

great plant! loves heat and sun. gets over 3' tall here in Raleigh. blooms non-stop into hard frost. self-cleaning, too.


On Sep 7, 2008, docturf from Conway, SC (Zone 8b) wrote:

This is my third year with a Ragin' Cajun and I can;t believe how many hummers are attracted to it. As an added benefit, it hangs over a Toad Flax plant which is a prolific bloomer and also a hummer attractant. I overwinter the Ragin Cajun in my house, but the Toad flax is left in the ground and does very well here in Coastal South Carolina. The combination of these 2 plants, plus a nearby liquid feeder has given my family much joy. Docturf (AND the hummers also!!). Docturf


On Sep 6, 2008, magpie38 from Houston, TX wrote:

Performed well in a NE facing bed where it got sun until ~2PM. Strangely, there is a branch of Ruellia brittoniana 'Katie' growing off the main stem. Unstable mutation?


On May 25, 2008, Birdmandan from Cincinnati, OH wrote:

I picked up this plant last year, as a possible Hummingbird plant. I wasnt disappointed, it drew allot of hummers. I kept the seeds and planted them this year but not a single plant came up[:( I did manage to keep one of the plants alive from last year. I placed it near a south facing window and it made it. The local greenhouse where I purchased the plant last year dosent have them this year.



On Nov 19, 2006, Marilynbeth from Hebron, KY wrote:

I bought 2 plants of 'Ragin' Cajun' Ruellia for the first time this Spring and put them in 2 different containers. Love it! Beautiful color and flower!

If I find it next year, I'm going to get one or two plants again.


On Jul 9, 2005, pbtxlady from Garland, TX (Zone 8a) wrote:

I just bought a red ruellia labeled 'Ragin' Cajun', to go with my Katie's Blue. Don't know much about it yet, but it sure is pretty. So far it's having no problem with the Dallas heat, even though it's only been in the ground a week.