Scientific: Campsis radicans 
Common: trumpet creeper, trumpet vine, cow itch
Family: Bignoniaceae
Origin: Eastern United States

Pronounciation: KAMP-sis RA-di-cans

Hardiness zones
12-16, 18-23 (coastal zone 17 with a warm exposure)
USDA 9-10 (arid and semi arid regions only)

Landscape Use: Seasonal accent, arbor, screen, wall cover, architectural green walls (no western exposures in Phoenix).

Form & Character: Aggressive vine, lush and tropical when in leaf and festive when in bloom.

Growth Habit: Deciduous woody perennial vine, vigorous and trailing to 100 feet in length.

Foliage/Texture: Leaves dark green, fine hairs on abaxial (leaf underside) mid-vein, opposite, glabrous, pinnately compound, stems produce aerial roots for attachment, stipules present as tufts of hair; medium coarse texture.

Flowers & fruits: Large tubular reddish orange flowers to 3 inches across in terminal corymbose clusters, 8 to 15 flowers per cluster; fruit are elongated pods producing winged seeds.

Seasonal color: Festive reddish orange tubular flowers in early summer.

Temperature: Heat loving and cold tolerant.

Light: Full sun

Soil: Tolerant

Watering: Irrigate regularly in Phoenix.

Pruning: Trumpet creeper might need pruning to control spread, though tendency to become overly aggressive is less in Phoenix than in more temperate climates.

Propagation: Cuttings

Disease and pests: None

Additional comments: Leaves may cause dermatitis. Campsis radicans is seldom seen in Phoenix landscapes, though it grows surprisingly well in desert conditions if irrigated sufficiently. Attracts hummingbirds.

Another Campis vine to take note of for use in Phoenix landscapes is Campsis x tagliabuana 'Madame Galen'. This is a hybrid cross between C. radicans and C. grandiflora dating back to 1889 in Milan, Italy.