Veronica filiformis, commonly known as slender speedwell or creeping speedwell, is a perennial herb native to open woodlands and grassy areas in Europe and Western Asia. It has been introduced to other regions, including North America and New Zealand, where it can become invasive. This plant typically forms dense mats of slender, hairy stems that root at the nodes, spreading across the ground. The leaves are small, bright green, and rounded, with toothed margins. Slender speedwell blooms profusely in spring with small, pale blue to lilac flowers that are quite showy, adding a splash of color to the landscape.

Slender speedwell is valued for its ability to form a low-growing ground cover, making it suitable for rock gardens, borders, and as a lawn substitute in shady areas. It thrives in moist, well-drained soils and prefers partial shade but can tolerate full sun in cooler climates. While it is low maintenance and can handle occasional foot traffic, it requires regular watering during dry periods. Gardeners should be cautious when planting Veronica filiformis outside its native range due to its potential to spread aggressively and outcompete native vegetation.CC BY-SA 4.0