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annual

Star of Siam Tropical Water Lily

Nymphaea 'Star of Siam'

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Star of Siam Tropical Water Lily (Nymphaea 'Star of Siam') at Lakeshore Garden Centres

Star of Siam Tropical Water Lily flowers

Star of Siam Tropical Water Lily flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height:  12 inches

Flower Height:  16 inches

Spread:  6 feet

Sunlight:  full sun 

Hardiness Zone:  (annual)

Other Names:  Waterlily

Description:

A spectacular selection, presenting violet-blue, star-shaped flowers with gold eyes surrounded by white; blooms from summer to fall; green foliage is mottled with burgundy; easy to care for; water lilies dislike moving water; annual in colder climates

Ornamental Features

Star of Siam Tropical Water Lily features showy fragrant violet star-shaped flowers with blue overtones, gold eyes and white centers at the ends of the stems from early summer to late fall. The flowers are excellent for cutting. Its attractive large glossy round leaves remain lime green in colour with showy burgundy variegation throughout the year.

Landscape Attributes

Star of Siam Tropical Water Lily is an herbaceous annual with a ground-hugging habit of growth. Its relatively coarse texture can be used to stand it apart from other garden plants with finer foliage.

This plant will require occasional maintenance and upkeep, and should be cut back in late fall in preparation for winter. It has no significant negative characteristics.

Star of Siam Tropical Water Lily is recommended for the following landscape applications;

  • Water Gardens
  • Naturalizing And Woodland Gardens
  • Container Planting
  • Bog Gardens

Planting & Growing

Star of Siam Tropical Water Lily will grow to be about 12 inches tall at maturity extending to 16 inches tall with the flowers, with a spread of 6 feet. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. 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 should only be grown in full sunlight. It is an excellent choice for very wet locations or locations with some standing water. To help this plant achive its best flowering performance, periodically apply a flower-boosting fertilizer from early spring through into the active growing season. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This particular variety is an interspecific hybrid. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Star of Siam Tropical Water Lily is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. 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
Naturalizing  Container  Bog  Water 
Applications
Flowers  Foliage Color  Texture 
Ornamental Features