Thyme-leaved Speedwell (Veronica serpyllifolia) is a tiny flower which will often be overlooked as it somewhat insignificant amongst the other plants around it. It has preference for bare ground where there is little competition but it still struggles to get noticed. The flower is very small and the petal fall very quickly if the plant is touched.
Flowering from April through until October the flowers are a very pale blue, almost white, but are, on close inspection, typical of the speedwell family with four petals, the one at the bottom being narrower and more pointed than the others. The main feature are the leaves which are oval, dark green and shiny and do, indeed, recall those of the wild thyme.
It is common on bare ground, gravel, edges of car parks and such places as well as being a garden ' weed'. It can also grow in short grass including lawns.
Thyme-leaved Speedwell: what is the thyme