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DESCRIPTION: Deep green foliage makes a striking contrast with the curiously fringed violet-blue flowers; avoid wet winter soil; adaptable to most sites and stunning when massed; loved by butterflies.
BOTANICAL NAME: Centaurea montana
OTHER NAMES: Mountain Bluets, Knapweed, Bachelor's Button
AVERAGE MATURE HEIGHT: 60 cm
AVERAGE MATURE SPREAD: 60 cm
SUN EXPOSURE: Full sun
FLOWER COLOUR: Deep blue
FLOWERING TIME: Summer
FOLIAGE COLOUR: Grey green
COLD HARDINESS: Zone 3 ( Should survive up to -39.9° Celsius )
WATER NEEDS: Drought Tolerant
OTHER FEATURES: Attracts Butterflies, Bee Friendly, Border, Cut Flowers, Deer Resistant, Rabbit Resistant
Mountain Blue Cornflower features unusual blue lacecap flowers with violet centers at the ends of the stems from early summer to mid fall. The flowers are excellent for cutting. Its attractive narrow leaves remain green in colour throughout the season.
Mountain Blue Cornflower is an herbaceous perennial 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 is best cleaned up in early spring before it resumes active growth for the season. It is a good choice for attracting butterflies to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration:
Mountain Blue Cornflower is recommended for the following landscape applications:
Planting & Growing
MountainBlue Cornflower will grow to be about 24 inches tall at maturity, with a spread of 3 feet. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 15 years. 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.
This plant should only be grown in full sunlight. It is very adaptable to both dry and moist locations, and should do just fine under typical garden conditions. It is considered to be drought-tolerant, and thus makes an ideal choice for a low-water garden or xeriscape application. It is not particular as to soil pH, but grows best in poor soils. It is highly tolerant of urban pollution and will even thrive in inner city environments.
Mountain Blue Cornflower 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. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden. Be aware that in our climate, most plants cannot be expected to survive the winter if left in containers outdoors, and this plant is no exception.
*We must be contacted within 7 days of delivery and plants must be taken care of, unplanted and watered until we can pick them up.
**Cedars & Perennials only come with an in-season warranty only. Warranty does not apply to frost damage, hail damage, wind damage or any other acts of mother nature. Plants must be properly planted, properly watered and cared for. Warranty only applies to items purchased at full price or to a maximum discount of 10% unless otherwise specified.