Plant Library
Gold Bullion Cornflower
Centaurea montana 'Gold Bullion'
Height: 24 inches
Spread: 18 inches
Sunlight:
Hardiness Zone: 3a
Other Names: Mountain Bluet, Perennial Bachelor's Button
Description:
Golden foliage makes a striking contrast with the curiously fringed violet-blue flowers; best foliage color when planted in full sun, but adaptable to most sites; loved by butterflies
Ornamental Features
Gold Bullion Cornflower features unusual sky blue lacecap flowers with violet centers at the ends of the stems from mid spring to early summer. The flowers are excellent for cutting. Its attractive narrow leaves remain gold in colour throughout the season.
Landscape Attributes
Gold Bullion 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;
- Disease
Gold Bullion Cornflower is recommended for the following landscape applications;
- Mass Planting
- Border Edging
- General Garden Use
- Container Planting
Planting & Growing
Gold Bullion Cornflower will grow to be about 24 inches tall at maturity, with a spread of 18 inches. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 15 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!
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. This is a selected variety of a species not originally from North America. 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.
Gold Bullion 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. 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.