Quartz Blue Verbena flowers
(Photo courtesy of NetPS Plant Finder)
Height: 12 inches
Spacing: 10 inches
Hardiness Zone: (annual)
Other Names: Vervain
Group/Class: Quartz Series
This low maintenance selection is drought, heat, and frost tolerant; striking violet-blue flowers with contrasting white eyes, blooming in clusters all season long, over fresh green foliage
Quartz Blue Verbena features showy clusters of violet star-shaped flowers with blue overtones and white eyes at the ends of the stems from late spring to mid fall. The flowers are excellent for cutting. Its small tomentose narrow leaves remain green in color throughout the season. The fruit is not ornamentally significant.
Quartz Blue Verbena is an herbaceous annual with a mounded form. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.
This plant will require occasional maintenance and upkeep. Trim off the flower heads after they fade and die to encourage more blooms late into the season. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.
Quartz Blue Verbena is recommended for the following landscape applications;
Planting & Growing
Quartz Blue Verbena will grow to be about 10 inches tall at maturity, with a spread of 14 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 10 inches apart. Its foliage tends to remain low and dense right to the ground. Although it's not a true annual, this fast-growing plant can be expected to behave as an annual in our climate if left outdoors over the winter, usually needing replacement the following year. As such, gardeners should take into consideration that it will perform differently than it would in its native habitat.
This plant should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This particular variety is an interspecific hybrid. It can be propagated by cuttings; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.
Quartz Blue Verbena is a fine choice for the garden, but it is also a good selection for planting in outdoor containers and hanging baskets. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the 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.