Blue Explosion Speedwell flowers
(Photo courtesy of NetPS Plant Finder)
Plant Height: 10 inches
Flower Height: 18 inches
Spacing: 14 inches
Hardiness Zone: 4a
An extremely easy to grow and virtually maintenance-free variety; flower spikes are tightly bunched and long, producing stunning blue flowers from the bottom up; makes an ideal garden accent, great in rock gardens
Blue Explosion Speedwell has masses of beautiful spikes of blue flowers with violet overtones rising above the foliage from early to late summer, which are most effective when planted in groupings. Its glossy narrow leaves remain forest green in color throughout the year. The fruit is not ornamentally significant.
Blue Explosion Speedwell is a dense herbaceous evergreen perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.
This is a relatively low maintenance plant, and should only be pruned after flowering to avoid removing any of the current season's flowers. 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.
Blue Explosion Speedwell is recommended for the following landscape applications;
Planting & Growing
Blue Explosion Speedwell will grow to be about 10 inches tall at maturity extending to 18 inches tall with the flowers, with a spread of 18 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 14 inches apart. Its foliage tends to remain low and dense right to the ground. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 8 years.
This plant does best in full sun to partial shade. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. 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 sandy soils, 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 division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.
Blue Explosion 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. 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. Contact our store for more information on how to protect it over the winter months.