Yellow Bells, Yellow Trumpet Flowers

Scientific Name: Tecoma stans (L.) Juss. ex Kunth in H.B.K.
Synonym: Stenolobium stans
Family: Bignoniaceae

Recommended Temperature Zone:
Sunset®: 11-13, 16, 18-28
USDA: 8-11

Frost Tolerance: Hardy to 10° F (-12° C), can freeze to the ground during hard freezes.

Sun Exposure: Full sun to light shade

Origin: From Arizona and Texas to Argentina

Growth Habits: Semi deciduous shrub or small tree, fast growing to 12 feet (3.6 m), 6 feet wide (1.8 m)

Flowers: Yellow flowers

Watering Needs: Little water once established

Propagation: Easy by seeds, semi-hardwood cuttings

The name Tecoma is coming from the native name 'tecomaxochitl'. There are 2 variety commonly encountered:

• Tecoma stans var. angustata is a shrub native from Texas and New Mexico. It reaches 10 feet in height (3 m) and has more deeply toothed, narrower leaves (Picture 2).
• Tecoma stans var stans is a small tropical tree that reaches 25 feet in height (7.5 m) and come from Mexico and Central America. It has wider leaves (Picture 3).

Blooming Habits:
The Tecoma stans has yellow blossom in spring and fall. In particularly favorable areas, it blooms all year.

Culture:
Prune it in late winter after the last frost.