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annual

On Top® Sun Glow Begonia

Begonia 'AmeriHybrid On Top Sun Glow'

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On Top Sun Glow Begonia (Begonia 'AmeriHybrid On Top Sun Glow') at Lakeshore Garden Centres

On Top® Sun Glow Begonia flowers

On Top® Sun Glow Begonia flowers

(Photo courtesy of NetPS Plant Finder)

On Top Sun Glow Begonia (Begonia 'AmeriHybrid On Top Sun Glow') at Lakeshore Garden Centres

On Top® Sun Glow Begonia in bloom

On Top® Sun Glow Begonia in bloom

(Photo courtesy of NetPS Plant Finder)

Height:  12 inches

Spacing:  10 inches

Sunlight:  partial shade  full shade 

Hardiness Zone:  (annual)

Group/Class:  AmeriHybrid Tuberous Begonia

Brand:  Golden State Bulb Growers

Description:

An attractive mounded begonia presenting glossy dark green leaves with toothed edges; yellow double flowers with scarlet-orange edges are produced throughout the season; grows well in humid conditions; great for containers, or hanging baskets

Ornamental Features

On Top® Sun Glow Begonia features dainty nodding yellow orchid-like flowers with gold overtones and scarlet edges at the ends of the stems from mid spring to early fall. Its attractive serrated heart-shaped leaves remain dark green in colour throughout the year.

Landscape Attributes

On Top® Sun Glow Begonia is an herbaceous annual with a mounded form. 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 is a high maintenance plant that will require regular care and upkeep, and usually looks its best without pruning, although it will tolerate pruning. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Insects
  • Disease

On Top® Sun Glow Begonia is recommended for the following landscape applications;

  • Mass Planting
  • Border Edging
  • General Garden Use
  • Container Planting
  • Hanging Baskets

Planting & Growing

On Top® Sun Glow Begonia will grow to be about 12 inches tall at maturity, with a spread of 12 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 10 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. Although it's not a true annual, this 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 partial shade to shade. It requires an evenly moist well-drained soil for optimal growth, but will die in standing water. It is not particular as to soil pH, but grows best in rich soils. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone over the growing season to conserve soil moisture. This particular variety is an interspecific hybrid. 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.

On Top® Sun Glow Begonia is a fine choice for the garden, but it is also a good selection for planting in outdoor containers and hanging baskets. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers and foliage against which the thriller plants stand out. 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
Massing  Edging  Garden  Container  Basket 
Applications
Flowers  Foliage Color 
Ornamental Features