Outsidepride Mother of Creeping Thyme Ground Cover Plant Flower Seeds - 5000 Seeds Creeping thyme is a low growing ground cover plant only reaching 2 - 4 inches in height and grows as a perennial in USDA Zones 4 - 8. Thymus Serpyllum, Mother of Thyme, is an ideal choice for growing between walkway stones or bricks or used as a general ground cover. It has beautiful lavender flowers in dense clusters. Like other thymes, the leaves are highly fragrant; and its wonderful to breathe in the fresh scent as you walk along a garden path! This low-growing, mat-forming perennial with slim stems is lined with tiny, oval, hairy leaves which tend to be dark green. Directly sow the seeds outdoors after frost danger has passed and temperatures are warm. Press the seed into the soil and keep it consistently moist until germination occurs. 5000 seeds covers 100 square feet.