Yellow Bells, Trumpet Flower

Tecoma stans var. angustata

Family: Bignoniaceae (big-no-nih-AY-see-ee) (Info)
Genus: Tecoma (tek-OH-muh) (Info)
Species: stans var. angustata



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:

Grow outdoors year-round


10-12 ft. (3-3.6 m)


12-15 ft. (3.6-4.7 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)

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


Parts of plant are poisonous if ingested

Bloom Color:

Bright Yellow

Bloom Time:

Late Summer/Early Fall



This plant is resistant to deer

Other details:

May be a noxious weed or invasive

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 woody stem cuttings

From seed; sow indoors before last frost

From seed; direct sow after last frost

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds


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


Phoenix, Arizona (2 reports)

Queen Creek, Arizona

Scottsdale, Arizona

Escondido, California

Mountain View Acres, California

Palm Springs, California

Santee, California

Bradenton, Florida

Clewiston, Florida

Delray Beach, Florida

Fort Mc Coy, Florida

Inverness, Florida

Islamorada, Florida

Mc Intosh, Florida

Miami, Florida (2 reports)

Palm Harbor, Florida

Port Saint Lucie, Florida

Sarasota, Florida

Sulphur, Louisiana

Zachary, Louisiana

Elizabeth City, North Carolina

Oklahoma City, Oklahoma (2 reports)

Charleston, South Carolina

Alice, Texas

Arlington, Texas

Austin, Texas

Beaumont, Texas (2 reports)

Belton, Texas

Bulverde, Texas

Colmesneil, Texas

Cypress, Texas

El Paso, Texas

Fort Worth, Texas

Georgetown, Texas

Granbury, Texas

Harlingen, Texas

Houston, Texas (3 reports)

Katy, Texas

Kerrville, Texas

Kingsland, Texas

League City, Texas (2 reports)

Livingston, Texas

Midway, Texas

Port Arthur, Texas

Round Rock, Texas

San Antonio, Texas (2 reports)

Washington, Texas

show all

Gardeners' Notes:


On Oct 23, 2016, coriaceous from ROSLINDALE, MA wrote:

T. stans var. angustata (Arizona yellow bells) is a smaller and more fine textured northern varietal cline from southern Arizona, New Mexico, west Texas and northern Mexicio. It is more drought tolerant than the species, but also more susceptible to Texas root rot in most formerly agricultural soils.

This species is considered invasive in south Florida and Hawaii.


On Feb 10, 2012, TrotlineDesigns from Clewiston, FL wrote:

Starting from seed is pretty simple with this guy. I just toss half a dried bean in a pot and not long from then I have a few pop up, thin them out later and in no time (and I mean no time really, a few months) you have a small tree. They do great in pots and in the ground.
In under a year I had 2 - 8 foot trees. I have seen them in Alice, Tx. grow over 15 feet high so be aware of that if you plant them near your house as they have a pretty tough root system.


On May 22, 2010, lizards_keep from Colmesneil, TX (Zone 8b) wrote:

With two hummingbird feeders hanging over this bush its keep busy all summer with hummers, butterflies, and bees of all types.


On Jun 3, 2009, MBMom from Port Saint Lucie, FL (Zone 9b) wrote:

I started this plant from seeds I collected. The foliage is very attractive and the plant requires no special care. When Tecoma is in bloom its a head turner with bouquets of flowers that does not end. I have it right by my front door.


On Nov 10, 2004, botanygirl from Pflugerville, TX wrote:

I have read alot on this plant and intend to plant some in my garden because it is so beautiful. The only thing bad that I have read on this plant is that the nectar is poisonous and the honey that the bees make from it is poisonous. I live in the Zone 8 and it blooms from spring thru fall here.


On Sep 15, 2004, anomina from Bradenton, FL (Zone 9b) wrote:

mine went into flower in the spring and has been flowering enthusiastically ever since and we are now in mid september. it requires no particular care, and no pests seem to inhabit it. it's not too big and not too small to have an impact. the perfect, beautiful, flowering plant. if you can accommodate it, i highly recomend it.

anomina in southwest florida


On Aug 9, 2004, Larabee from Houston, TX wrote:

This is a very showy plant, with clusters of vivid yellow flowers. In the summer, my esperanzas steal the thunder from all my other flowers. Have not had any problems with it at all.


On Jun 3, 2004, foodiesleuth from Honomu, HI (Zone 11) wrote:

I am waiting for my sister to send me seeds from Miami ;-)


On Feb 3, 2004, Monocromatico from Rio de Janeiro,
Brazil (Zone 11) wrote:

This tree never grows very large, blooms all the year, and, if its not blooming, the bright green foliage will do it. Its a perfect tree for any tropical and subtropical yard.


On Aug 24, 2003, cknutsen from Kingsland, TX wrote:

I have grown so many of these beautiful plants from the seeds, but would like know about the stem cutting method.


On Mar 23, 2003, jacaranda wrote:

The best possible selection for any garden.