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Centaurea, Mountain Bluet, Mountain Cornflower, Perennial Cornflower 'Amethyst Dream'

Centaureamontana

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Centaurea montana by DaylilySLP
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Family
Asteraceae (ass-ter-AY-see-ee)
Info
Genus
Centaurea (sen-TAR-ee-uh)
Info
Species
montana (MON-tah-nuh)
Info
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Succulent
Height
18-24 in. (45-60 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Danger

Unknown - Tell us

Bloom Color
Medium Purple
Bloom Time
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Bronze
Where to Grow

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Elba, New York

Freeland, Washington

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4 members have or want this plant for trade

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Gardener's Notes:

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mehitabel45
Whidbey Island, WA (Zone 8b) | August 2013 | positive

Amazingly beautiful color! Deep purple flowers, not as invasive as the blue form. Needs cutting back often to produce the most blooms. Cu...Read More

P
P
petalz
Marinette, WI (Zone 4b) | May 2012 | neutral

Just planted one of these a few days ago in full sun spot but it doesn't look very happy! Rather wilty. I watered it in well. Anybody el...Read More

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