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annual

Marine Blue Salvia

Salvia 'Marine Blue'

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Marine Blue Salvia (Salvia 'Marine Blue') at Lakeshore Garden Centres

Marine Blue Salvia flowers

Marine Blue Salvia flowers

(Photo courtesy of NetPS Plant Finder)

Marine Blue Salvia (Salvia 'Marine Blue') at Lakeshore Garden Centres

Marine Blue Salvia in bloom

Marine Blue Salvia in bloom

(Photo courtesy of NetPS Plant Finder)

Height:  30 inches

Spacing:  3 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Description:

This fast growing variety produces deep blue flowers, that cover each sturdy stalk from late spring through fall; a dense, leafy plant with a mounding habit and shiny, fragrant, gray green leaves; great for borders, and tolerant of seaside conditions

Ornamental Features

Marine Blue Salvia has masses of beautiful spikes of royal blue flowers rising above the foliage from late spring to mid fall, which are most effective when planted in groupings. The flowers are excellent for cutting. Its attractive fragrant pointy leaves remain grayish green in colour with hints of silver throughout the season.

Landscape Attributes

Marine Blue Salvia is an herbaceous annual with an upright spreading habit of growth. 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 be cut back in late fall in preparation for winter. It is a good choice for attracting 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.

Marine Blue Salvia is recommended for the following landscape applications;

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

Planting & Growing

Marine Blue Salvia will grow to be about 24 inches tall at maturity, 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 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 does best in full sun to partial shade. It prefers dry to average moisture levels with very well-drained soil, and will often die in 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 type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. 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.

Marine Blue Salvia 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  Edging  Garden  Groundcover  Naturalizing  Container 
Applications
Flowers  Foliage Color  Attracts Wildlife 
Ornamental Features