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annual

Orange Clock Vine

Thunbergia gregorii

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Orange Clock Vine (Thunbergia gregorii) at Cal's Market & Garden Center

Orange Clock Vine flowers

Orange Clock Vine flowers

(Photo courtesy of NetPS Plant Finder)

Height:  10 feet

Spread:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Other Names:  syn. Thunbergia gibsonii

Ornamental Features

Orange Clock Vine features bold orange tubular flowers along the branches from early summer to mid fall. Its heart-shaped leaves remain green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Orange Clock Vine is a multi-stemmed annual with a ground-hugging habit of growth. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.

This plant will require occasional maintenance and upkeep, and can be pruned at anytime. It is a good choice for attracting butterflies to your yard. It has no significant negative characteristics.

Orange Clock Vine is recommended for the following landscape applications;

  • Accent
  • Hedges/Screening
  • General Garden Use
  • Container Planting
  • Hanging Baskets

Planting & Growing

Orange Clock Vine will grow to be about 10 feet tall at maturity, with a spread of 24 inches. As a climbing vine, it should either be planted near a fence, trellis or other landscape structure where it can be trained to grow upwards on it, or allowed to trail off a retaining wall or slope. Although it's not a true annual, this fast-growing plant can be expected to behave as an annual in our climate if left outdoors over the winter, usually needing replacement the following year. As such, gardeners should take into consideration that it will perform differently than it would in its native habitat.

This plant does best in full sun to partial shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is not originally from North America. It can be propagated by cuttings.

Orange Clock Vine is a fine choice for the garden, but it is also a good selection for planting in outdoor containers and hanging baskets. Because of its spreading habit of growth, it is ideally suited for use as a 'spiller' in the 'spiller-thriller-filler' container combination; plant it near the edges where it can spill gracefully over the pot. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Accent  Screening  Garden  Container  Basket 
Applications
Flowers  Attracts Wildlife 
Ornamental Features

LOCATION

6403 Egan Drive
Savage, Minnesota 55378
Phone: 952-447-5215
Email:
info@calsmarket.com

OPENING HOURS

Monday – Friday: 9 AM – 6 PM 
Saturday: 9 AM – 5 PM (Closed 7/4)
Sunday 10AM – 5 PM
Special hours Wednesday 9AM-10AM for those over 65 years of age or immune-compromised.

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