Thyme, Creeping Thyme, Walk on Me, 880 Seeds! Groco* CREEPING THYME (Thymus serpyllum) WINNER/ BUYER GETS APPX. 880 SEEDS!! Perennial Purple blooms 4-10" tall Full Sun Hardy zones 4-9 Aromatic green leaves release their fragrance when walked on. Thus, the name "Walk on me." Suitable for use between paving stones in pathways, will spread to about 18" across. Besides producing lovely purple flower, the leaves and stems can be used as a culinary herb. A wonderful plant you must have. Comes with planting instructions.