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annual

Hercules Calla Lily

Zantedeschia 'Hercules'

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Hercules Calla Lily (Zantedeschia 'Hercules') at Hicks Nurseries

Hercules Calla Lily flowers

Hercules Calla Lily flowers

(Photo courtesy of NetPS Plant Finder)

Hercules Calla Lily (Zantedeschia 'Hercules') at Hicks Nurseries

Hercules Calla Lily in bloom

Hercules Calla Lily in bloom

(Photo courtesy of NetPS Plant Finder)

Plant Height:  4 feet

Flower Height:  7 feet

Spacing:  3 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Other Names:  Lily of the Nile, Easter Lily, Arum Lily

Description:

This huge form of the species presents a mound of enormous green leaves that are spotted in white; in summer it sends up towering, tall flower stalks with huge blooms on top; a breathtaking centerpiece for a large garden or spectacular along borders

Ornamental Features

Hercules Calla Lily features bold white trumpet-shaped flowers with yellow throats rising above the foliage from early summer to early fall. The flowers are excellent for cutting. Its attractive enormous glossy heart-shaped leaves remain dark green in color with distinctive white spots throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Hercules Calla Lily is an herbaceous annual with tall flower stalks held atop a low mound of foliage. Its wonderfully bold, coarse texture can be very effective in a balanced garden composition.

This is a high maintenance plant that will require regular care and upkeep, and should be cut back in late fall in preparation for winter. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Hercules Calla Lily is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • General Garden Use
  • Container Planting

Planting & Growing

Hercules Calla Lily will grow to be about 4 feet tall at maturity extending to 7 feet tall with the flowers, with a spread of 4 feet. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 3 feet apart. 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 full sun to partial shade. It requires an evenly moist well-drained soil for optimal growth. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This particular variety is an interspecific hybrid, and parts of it are known to be toxic to humans and animals, so care should be exercised in planting it around children and pets. 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.

Hercules Calla Lily is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. 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  Massing  Garden  Container 
Applications
Flowers  Foliage Color  Texture 
Ornamental Features