Plant Library

annual

Sunny Lemon Star Black-Eyed Susan

Thunbergia alata 'Sunny Lemon Star'

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Sunny Lemon Star Black-Eyed Susan (Thunbergia alata 'Sunny Lemon Star') at Town And Country Gardens

Sunny Lemon Star Black-Eyed Susan flowers

Sunny Lemon Star Black-Eyed Susan flowers

(Photo courtesy of NetPS Plant Finder)

Sunny Lemon Star Black-Eyed Susan (Thunbergia alata 'Sunny Lemon Star') at Town And Country Gardens

Sunny Lemon Star Black-Eyed Susan flowers

Sunny Lemon Star Black-Eyed Susan flowers

(Photo courtesy of NetPS Plant Finder)

Height:  8 feet

Spread:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Group/Class:  Sunny Series

Brand:  Ball

Ornamental Features

Sunny Lemon Star Black-Eyed Susan features bold yellow tubular flowers with brown throats along the stems from early summer to mid fall. Its serrated oval leaves remain green in color throughout the season.

Landscape Attributes

Sunny Lemon Star Black-Eyed Susan is an herbaceous 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.

Sunny Lemon Star Black-Eyed Susan is recommended for the following landscape applications;

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

Planting & Growing

Sunny Lemon Star Black-Eyed Susan will grow to be about 8 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 is a selected variety of a species not originally from North America. It can be propagated by cuttings; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Sunny Lemon Star Black-Eyed Susan 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. It is even sizeable enough that it can be grown alone in a suitable container. 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

Disclaimer - This Plant Finder tool is an online resource representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact the store directly for availability. It does not include our entire inventory of plants, so be sure to visit our store to see varieties that may not be represented on this list.