Thunbergia Species, Orange Clockvine, Orange Trumpet Vine
Thunbergiagregorii

Family: Acanthaceae (ah-kanth-AY-see-ee)
Genus: Thunbergia (thun-BER-jee-uh)
Species: gregorii (gre-GOR-ee-eye)

Category
Vines and Climbers

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Sun to Partial Shade

Foliage
Evergreen

Foliage Color

Height
6-8 ft. (1.8-2.4 m)

Spacing
24-36 in. (60-90 cm)

Hardiness
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)

Where to Grow
Suitable for growing in containers

Danger

Bloom Color
Red
Orange
Red-Orange
Bright Yellow

Bloom Characteristics

Bloom Size

Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall

Other details

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
Non-patented

Propagation Methods
From herbaceous 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