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Plant Height: 8 inches
Flower Height: 16 inches
Spacing: 10 inches
Sunlight:
Hardiness Zone: 2a
Other Names: Broadleaf Speedwell
Ornamental Features
Gentian Speedwell has masses of beautiful spikes of sky blue flowers rising above the foliage in late spring, which are most effective when planted in groupings. The flowers are excellent for cutting. Its glossy narrow leaves remain emerald green in color throughout the year.
Landscape Attributes
Gentian Speedwell is a dense herbaceous evergreen 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 is a relatively low maintenance plant, 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, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. It has no significant negative characteristics.
Gentian Speedwell is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
- Container Planting
Planting & Growing
Gentian Speedwell will grow to be about 8 inches tall at maturity extending to 16 inches tall with the flowers, with a spread of 12 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 10 inches apart. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years. As an evegreen perennial, this plant will typically keep its form and foliage year-round.
This plant does best in full sun to partial shade. It is very adaptable to both dry and moist locations, and should do just fine under typical garden conditions. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is not originally from North America. It can be propagated by division.
Gentian Speedwell is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the larger thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.
Characteristics
Applications
Ornamental Features