Veronica agrestis, commonly known as Green Field Speedwell, is an annual herb native to Europe and Western Asia, typically found in open fields, along roadsides, and in other disturbed areas. It is a low-growing plant, reaching only 10-15 cm in height, with a sprawling habit that can cover ground quickly. The leaves are small and oval, and the plant produces tiny blue to violet flowers with four petals that bloom from spring to autumn, offering a long flowering season. The flowers are not particularly showy, but they can add a subtle charm to garden settings.

Green Field Speedwell is appreciated for its ability to fill in bare spots quickly, making it useful as a ground cover in garden borders and rockeries. It thrives in a variety of soil types, provided they are well-drained, and it prefers full sun to part shade conditions. While it requires minimal maintenance, it can self-seed prolifically, which contributes to its potential invasiveness. In some regions, it is considered a weed due to its aggressive growth habit. Gardeners should be cautious about introducing it to areas where it could spread uncontrollably.CC BY-SA 4.0