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Trumpet Vine, Trumpet Creeper, Cow-Itch Vine 'Judy'

Campsis radicans

Family: Bignoniaceae (big-no-nih-AY-see-ee) (Info)
Genus: Campsis (KAMP-sis) (Info)
Species: radicans (RAD-ee-kans) (Info)
Cultivar: Judy


Vines and Climbers

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:

Unknown - Tell us


20-30 ft. (6-9 m)


12-15 in. (30-38 cm)


USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

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)

Sun Exposure:

Sun to Partial Shade


Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Bright Yellow

Bloom Time:

Mid Summer

Late Summer/Early Fall



Other details:

May be a noxious weed or invasive

Soil pH requirements:

4.6 to 5.0 (highly acidic)

5.1 to 5.5 (strongly acidic)

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

8.6 to 9.0 (strongly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

From softwood cuttings

From hardwood cuttings

Allow cut surface to callous over before planting

From seed; direct sow outdoors in fall

From seed; stratify if sowing indoors

By simple layering

By air layering

By serpentine layering

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Properly cleaned, seed can be successfully stored


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

Valley Center, California

East Brookfield, Massachusetts

Albuquerque, New Mexico

Bosque, New Mexico

Dayton, Ohio

Lancaster, Pennsylvania

show all

Gardeners' Notes:


On Jul 3, 2014, kmm44 from Dayton, OH wrote:

I had a orange-blooming trumpet vine for 15 yrs or so. My son gave it to me when it was just a tiny stick with 3 root hairs. I planted in front of a split-rail fence with a garden fencing liner. I grew by leaps and bounds, blooming in the 3rd year.
It was a love-hate relationship. I loved it because the flowers were beautiful and the hummingbirds loved it. I also saw hummingbird moths for the first time hovering around it.
HOWEVER--it was very invasive! I constantly had to pull out suckers from the flower bed and yard. The suckers also invaded the neighbors' yard on the other side of the fence.
It looked more like a tree than a vine. It had 4 thick "trunks" intertwined into the fence. The leaves and flowers were a canopy 12-15 feet up.
3 yrs ago much ... read more


On Mar 17, 2007, berrygirl from Braselton, GA (Zone 8a) wrote:

Campsis radicans 'Judy' YELLOW TRUMPET VINE Dec (z5) (Hum,ENa)
Introduced by Woodlanders Nursery, this vigorous SE native vine has large yellow-apricot trumpet-shaped flowers. Sun/Med