Thymus citriodorus (Lemon thyme or Citrus thyme) is a lemon-scented evergreen mat-forming perennial. There has been a great deal of confusion over the plant's correct name and origin. Recent DNA analysis suggests that it is not a hybrid or cross, but a distinct species as it was first described in 1811. T. citriodorus is an evergreen sub-shrub, growing to 0.1 metres (3.9 in) in height by 0.3 metres (12 in) in spread. It prefers full sun and well draining soil. The bloom period is mid to late summer, with pink to lavender flowers that are a nectar source for bees and butterflies.