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annual

Celestial Blue Sage

Salvia 'Celestial Blue'

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Celestial Blue Sage (Salvia 'Celestial Blue') at Lakeshore Garden Centres

Celestial Blue Sage flowers

Celestial Blue Sage flowers

(Photo courtesy of NetPS Plant Finder)

Celestial Blue Sage (Salvia 'Celestial Blue') at Lakeshore Garden Centres

Celestial Blue Sage in bloom

Celestial Blue Sage in bloom

(Photo courtesy of NetPS Plant Finder)

Plant Height:  3 feet

Flower Height:  4 feet

Spacing:  4 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Description:

A very robust and adaptable hybrid producing whorls of sky-blue blooms with burgundy calyces on tall spikes; a beautiful addition to borders or beds with its blue-gray foliage and upright, bushy form; looks fantastic in containers

Ornamental Features

Celestial Blue Sage has masses of beautiful spikes of fragrant sky blue tubular flowers with violet overtones and burgundy calyces rising above the foliage from mid spring to late fall, which are most effective when planted in groupings. The flowers are excellent for cutting. Its attractive fragrant narrow leaves remain grayish green in colour with hints of silvery blue throughout the season.

Landscape Attributes

Celestial Blue Sage is an herbaceous annual with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. It is a good choice for attracting bees, butterflies and hummingbirds to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. It has no significant negative characteristics.

Celestial Blue Sage is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Groundcover
  • Naturalizing And Woodland Gardens
  • Container Planting

Planting & Growing

Celestial Blue Sage will grow to be about 3 feet tall at maturity extending to 4 feet tall with the flowers, with a spread of 5 feet. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 4 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 is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for a low-water garden or xeriscape application. This plant should not require much in the way of fertilizing once established, although it may appreciate a shot of general-purpose fertilizer from time to time early in the growing season. It is not particular as to soil pH, but grows best in sandy soils. 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.

Celestial Blue Sage 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. 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
Massing  Garden  Groundcover  Naturalizing  Container 
Applications
Flowers  Foliage Color  Attracts Wildlife 
Ornamental Features