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Mountain Bluet is an erect, clump-forming perennial flower which is native to Europe. Genus came from the popular name of various plants in the late 14th century, from Medieval Latin centaurea, from Latin centaureum, from Greek kentaureion, from kentauros "centaur", so called because the plant's medicinal properties were discovered by Chiron the centaur. Specific epithet means pertaining to mountains or coming from mountains. It is known for it's solitary, fringed, rich blue cornflowers with reddish blue centers and black-edged involucre bracts.
Easily grown in average, dry to medium moisture, well-drained soils in full sun, Mountain Bluet are drought tolerant and tolerant of poor soils. It propagates two ways: by stolons, which rapidly form colonies when optimum growing conditions exist, or by seed. If deadheaded after bloom, you may get some additional blooms in the fall as well as the deadheading controlling the seeds. Plants need to be divided every 2-3 years.
Scientific Name: Centaurea montana
Common Name: Bachelor Button
Hardiness Zone: 3a - 9b
Hardiness Degree: -40°F (-40.0°C)
Blooming Season: Late Spring, Summer
Plant Habit: Spreading
Characteristics: Heat Tolerant, Low Maintenance
Water: Medium
Fertilize: None or when needed only
Spacing: 9 - 12" (23 - 30cm)
Height: 18 - 24" (46 - 61cm)
Width: 14 - 18" (36 - 46cm)