Hardy perennial ground cover herb from alpine southern Europe. This low-growing mound-forming plant has the most pretty purple flowers and delicious fragrance. The clusters of flowers top the neat mounds of leaves all summer, attracting bees and butterflies. Rock thyme is related to the true thymes and can be used just the same way in cooking or for teas. It has also been used medicinally for its diaphoretic and antipyretic properties. It is extremely drought-hardy, thriving in hot dry spots like rockeries and walls. Ht 40cm.