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White Tower of Jewels

Echium simplex

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White Tower of Jewels (Echium simplex) at Roger's Gardens

White Tower of Jewels

White Tower of Jewels

(Photo courtesy of NetPS Plant Finder)

Plant Height:  24 inches

Flower Height:  9 feet

Spread:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  9a


A short-lived perennial with attractive silvery gray-green leaves covered in smooth hairs, and held in rosettes; after 2 to 3 years a stout unbranched spike rises up to 9 feet, densely covered with white flowers; dies after flowering, but re-seeds freely

Ornamental Features

White Tower of Jewels has masses of beautiful spikes of fragrant white pincushion flowers rising above the foliage from late winter to mid spring, which are most effective when planted in groupings. Its attractive large tomentose narrow leaves remain grayish green in color with hints of silver throughout the year.

Landscape Attributes

White Tower of Jewels is an herbaceous evergreen perennial with tall flower stalks held atop a low mound of foliage. 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 should not require much pruning, except when necessary, such as to remove dieback. It is a good choice for attracting bees and hummingbirds to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Self-Seeding

White Tower of Jewels is recommended for the following landscape applications;

  • Accent
  • Rock/Alpine Gardens
  • General Garden Use
  • Container Planting

Planting & Growing

White Tower of Jewels will grow to be about 24 inches tall at maturity extending to 9 feet tall with the flowers, with a spread of 24 inches. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 3 years. As an evegreen perennial, this plant will typically keep its form and foliage year-round.

This plant does best in full sun to partial shade. It is very adaptable to both dry and moist growing conditions, but will not tolerate any 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..

White Tower of Jewels is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. Its large size and upright habit of growth lend it for use as a solitary accent, or in a composition surrounded by smaller plants around the base and those that spill over the edges. 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
Accent  Rock  Garden  Container 
Flowers  Foliage Color  Attracts Wildlife 
Ornamental Features