Basil Thyme grows in dry, calcareous, grassy habitats such as quarries, rocky sites and grassy, arable land. It is a downy, square-stemmed plant which grows to about 20 cm tall, bearing extremely pretty, blue-violet, flowers (8–10 mm) in whorls of two to six at the base of the upper, paired leaves. The corolla of the flower is two-lipped with a white patch on the lower lip. The opposite leaves are oval with a network of veins and only slightly toothed. This plant blooms from May to September, is an introduction and belongs to the Lamiaceae family.
I first recorded and photographed this plant in a disused quarry near Pollardstown, County Kildare in 2010.
If you are satisfied you have correctly identified this plant, please submit your sighting to the National Biodiversity Data Centre