The yellow trumpetbush is a broadleaf, evergreen, perennial shrub or small tree that has clusters of bright yellow trumpet-shaped flowers. It is native to the American tropics, including Florida and the Caribbean. The genus name, Tecoma , is derived from the Nahuatl name "tecomaxochitl," meaning “tubular flower.” The specific epithet means “erect, upright.” The yellow trumpetbush blooms best in full sun. It will perform well in organic-rich and moist, well-drained soils. The shrub benefits from being allowed to dry out between waterings. The blooms may be prolonged by deadheading the spent flowers. Pruning is necessary after flowering to control the size and shape of the shrub. The plant may be propagated by seeds or soft cuttings. It is best to collect the seeds in late summer or fall when the fruit pods are no longer green. Seedlings may be easily transplanted, and they will typically bloom within 2 years. The yellow trumpetbush is heat and drought-tolerant and is moderately resistant to deer. It is winter hardy in USDA zones 10b to 11. During harsh winters, the shrub may die back. When this occurs, the shrub should be cut back to the ground. If the roots are undamaged by the cold, the plant will regrow in spring. Yellow trumpet bush is typically 3 to 6 feet tall but can grow up to 10 to 25 feet tall and 10 to 20 feet wide in frost-free, optimum conditions. The leaves are odd pinnately compound with 5-13 leaflets. The flowers are bright yellow trumpet-shaped and emerge in clusters or racemes. They are very showy and mildly fragrant. The showy flowers bloom from spring until frost. In warmer climates, they may bloom all year long. The fruits are long thin green to grayish-brown capsules which are very conspicuous in the fall as they dangle from the shrub. The nectar of the flowers attracts hummingbirds and butterflies. Small mammals feed on the seeds, and other mammals browse on the leaves. It is the larval host for the plebeian sphinx moth (Paratrea plebeja) . Yellow trumpetbush is frequently planted as a specimen or accent plant due to its prolonged blooming and brilliant floral display. It is also used in the landscape mixed in with other border shrubs, patios or containers. Quick ID Hints: Opposite, odd pinnately compound leaves with 5-13 leaflets Leaflets are medium to olive green, elliptic to lanceolate with serrated margins Showy bright yellow trumpet-shaped flowers with pale red veins inside the tube Green to grayish-brown elongated fruit capsules Insects, Diseases, and Other Problems: The yellow trumpetbush has no serious disease or insect problems. Scale and chewing insects may be spotted. Spider mites and whiteflies may occur in plants that are maintained indoors.
Curated pairwise relationships between this plant and others in the library — who feeds
whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.
No curated interactions recorded for this species yet.
Also noted by NC State
Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell
apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; Loam (Silt); Sand
Soil pH
Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist | Occasionally Dry
Available space
3 feet-6 feet
Mature size
Height: 3 ft. 0 in. - 25 ft. 0 in. | Width: 3 ft. 0 in. - 20 ft. 0 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
2 - Understory (15-40 ft)
Form & Appearance
Habit / form
Erect
Texture
Medium
Foliage
Broadleaf Evergreen
Leaf color
Green
Leaf type
Compound (Pinnately , Bipinnately, Palmately)
Leaf arrangement
Opposite
Leaf shape
Elliptical; Lanceolate; Linear
Leaf margin
Serrate
Leaf feel
Smooth
Leaf size
3-6 inches long, 1-3 inches wide
Hairs present
No
Leaf detail
The leaves are odd-pinnately compound with 5 to 13 leaflets. The leaflet is lanceolate to elliptic, 1.5 to 5 inches long, 1-2 inches wide, and medium to olive green. The leaf arrangement is opposite, and the margins are serrated.
Flower color
Gold/Yellow
Flower value
Long Bloom Season; Showy
Flower form
Panicle; Raceme
Flower shape
Tubular
Flower size
1-3 inches
Flower detail
The flowers are bright yellow, showy, and trumpet-shaped. They are about 2 inches long and have a few pale red veins inside the tube. The flowers are arranged in clusters or racemes and are mildly fragrant. They bloom from spring to frost. In some tropical areas, they may bloom all year long.
Bloom time
Fall; Spring; Summer
Fruit color
Brown/Copper; Gray/Silver; Green
Fruit type
Capsule
Fruit size
> 3 inches long, < 1 inch wide
Fruit detail
After flowering, a long thin capsule forms that measure 4 to 10 inches long. Initially, they are green and then become grayish-brown as they mature. The capsule contains multiple small papery seeds.
Bark color
Light Brown; Light Gray
Bark detail
The bark is light gray to brown. The bark has white lenticels when the shrub is young. As the shrub ages, the bark becomes fissured.
Stem color
Brown/Copper; Green; Red/Burgundy
Stem detail
The twigs are thin and green. They turn reddish-brown as the shrub ages. The branches tend to droop and have no thorns. The shrub is multi-trunked.
Wildlife & Ecology
Native status
Non-native
Origin
Tropical and Subtropical Americas, and West Indies
Distribution
Native: Central America, South America as far as northern Argentina, United States--AZ, FL, NM, and TX, and the West Indies
Wildlife value
Bees, hummingbirds, and other pollinators nectar at the flowers. It is the larval host the Plebeian sphinx (Paratrea plebeja). Small mammals eat the seeds and leaves.
Attracts
Bees; Butterflies; Hummingbirds; Pollinators; Small Mammals
Native Americans in the southwest U.S. and Mexico used the shrub for bowmaking, bee fodder, and medicines. The roots were brewed to make a native beer.
Landscape Use
Landscape location
Container; Patio
Landscape theme
Butterfly Garden; Drought Tolerant Garden; Pollinator Garden; Rock Garden
Design feature
Accent; Border; Hedge; Screen/Privacy; Specimen
Garden tags
#nectar plant summer #long bloom time #flowers mid-fall #nectar plant spring #flowers late spring #flowers early summer #showy flowers #yellow flowers #small mammals #flowers mid-summer #larval host plant #drought tolerant #flowers late summer #hummingbird friendly #flowers early fall #nectar plant fall #bird friendly #bee friendly #heat tolerant #border planting #specimen #container plant #flowers mid-spring #patio #wildlife friendly #accent #moth caterpillar host