Thunbergia Species, White Lady, Sweet Clock-Vine

Thunbergiafragrans

Family
Acanthaceae (ah-kanth-AY-see-ee)
Genus
Thunbergia (thun-BER-jee-uh)
Species
fragrans (FRAY-granz)
Synonym
Roxburghia rostrata
Thunbergia volubilis
Sun Exposure
Full Sun
Foliage
Evergreen
Succulent
Height
6-8 ft. (1.8-2.4 m)
Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Hardiness
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Bloom Color
White/Near White
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Vines and Climbers
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
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 softwood cuttings
From seed; sow indoors before last frost
By simple layering
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Big Pine Key, Florida

Clearwater, Florida

Dade City, Florida

Deland, Florida

Dunnellon, Florida

Fort Pierce, Florida

Gainesville, Florida

Lakeland, Florida

Palm Bay, Florida

Zephyrhills, Florida

Jennings, Louisiana

New Orleans, Louisiana

Seadrift, Texas

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Gardener's Notes:

1
positive
2
neutrals
1
negative
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K
Alachua, FL (Zone 8b) | October 2012 | positive

T. fragrans dies to the ground for the winter but returns every summer in Gainesville FL z9a, and produces flowers right up until frost.

E
(Zone 10a) | September 2010 | negative

Very fast growing, it covers everything on it's way and looks weedy.
Two years now it refuses to flower in the summer and it flowe...Read More

S
Oklahoma City, OK (Zone 7a) | October 2004 | neutral

Woody twiner native to India and Sri Lanka. Flowers are white 2 inches wide and very fragrant. Fast growing in full sun. Excellent contai...Read More

L
Grove City, OH (Zone 6a) | January 2003 | neutral

Fragrance varies by plant: grow rooted cuttings of known plants for consistent results.

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Featured
(Diaphonia dorsalis)
Steller's Jay
(Cyanocitta stelleri)