Thyme-leaved speedwell is a plant with a broad native range that spans across Northern and Eastern Europe, the Mediterranean, parts of East and Southeast Asia, and some regions of South and Central America. It has been introduced to various other regions including parts of South America, North America, Australasia, and Southern Africa. This plant has successfully adapted to diverse climates beyond its native habitat, indicating a robust and versatile nature in various environments.

Thyme-leaved speedwell originates from Europe and Asia. This plant is considered a weed due to its ability to rapidly reproduce and spread, causing havoc in gardens. It generates vast amounts of seeds that can germinate under a wide range of conditions, making it particularly resilient and adaptable, especially in disturbed areas like gardens. Also, thyme-leaved speedwell's root system can spread during the growing season, forming dense mats that crowd out desired plants and disrupt biodiversity. Additionally, it's resistant to many common weed killers, making it difficult to control. The harmfulness of thyme-leaved speedwell primarily lies in its competitiveness, with its fast growth rate and successful domination of resources potentially compromising the growth of desirable plants, and even altering the garden ecosystem. Thyme-leaved speedwell's primary means of spread is through seed dispersal. These seeds can be spread by wind, water, wildlife, and even by human activity, allowing it to colonize new areas swiftly. The control of thyme-leaved speedwell can be particularly challenging due to its prolific seed production and the persistence of these seeds in the soil.

The best season to control thyme-leaved speedwell is in early spring, preferably before it begins to flower. Here are some ways to control this plant: