Veronica americana Schwein. ex Benth.
American Speedwell, American Brooklime
Veronica americana f. americana
Bloom Time: All summer
Veronica americana is a herbaceous perennial with glabrous stems, up to 3.3 feet (1 m) long, that bear terminal or axillary racemes or spikes of soft violet flowers. The leaves are short-petiolate, glabrous, serrate to almost entire, up to 3.2 inches (8 cm) long and 3 to 20 times as long as wide.
USDA hardiness zone 3a to 8b: from −40 °F (−40 °C) to 20 °F (−6.7 °C).
How to Grow and Care
Speedwell thrives in conditions as wide-ranging as the full sun to partial shade and in loamy, sandy, or clay dense soils. However, it does prefer a sunny location with well-draining soil. The soil pH can be as liberal as neutral, alkaline, or acidic, with moisture content from average to quite moist.
The hardy, medium-sized plant with striking 1 to 3 foot (30 to 90 cm) long flower spikes, flourishes in USDA hardiness zones 3-8. The Speedwell is tolerant of a variety of conditions but prefers full sun and well-drained soil.
Speedwell can be sown from seed; however, it is more commonly purchased from a nursery, so planting it in the garden can take place right away in spring.
Speedwell plant care is relatively low maintenance. To facilitate maximum blooming, it is advisable to remove the faded spikes from Speedwell and periodically divide the plant every few years in the early spring or fall. See more at How to Grow and Care for Speedwell.
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