Growing Woolly Thyme: Information On Woolly Thyme Ground Cover

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By Bonnie L. Grant & Becca Badgett
(Co-author of How to Grow an EMERGENCY Garden)

There are plants you just want to touch and woolly thyme plants (Thymus pseudolanuginosus) are just one of them. Woolly thyme is a perennial herb, with medicinal and culinary uses in addition to ornamental use. Try growing woolly thyme in the cracks between paving stones, along a gravel path or as part of a xeriscape or drought tolerant garden. The herb doesn’t mind a bit of rough handling and can be trod upon with no ill effects. In fact, when stepped on, woolly thyme ground cover emits a pleasant fragrance. Here is more information on how to grow woolly thyme so your toes can enjoy the soft furriness and your nose the sweet scent of this magical little plant.

Woolly Thyme Plant Information

Thyme is one of the more hardy herbs perfect for hot sunny locations. Once established, it tolerates dry conditions and spreads slowly, eventually creating a thick mat of foliage. Tiny leaves on woolly thyme ground cover are green and often edged with gray to silver. In summer the plant adds a bonus and produces sweet little pink to purple flowers. The plants are low growing, rarely getting higher than 12 inches and spreading out to 18 inches in width.

Woolly thyme plants are perennial and survive in USDA zones 4 to 7 but sometimes up to zone 9 with sheltered locations during the heat of the day. Little is needed from the gardener with woolly thyme care. This almost self-sustaining plant is a treat for the unmotivated or the just plain too busy gardener.

Growing Woolly Thyme


Thyme is a member of the mint family and as tenacious and sturdy as other members of the group, so when planting woolly thyme, put it in an area where spread is desirable. Woolly thyme plants can be easily started from seed indoors or from small plugs that are readily available at your local nursery. Keep in mind, however, that those started from seed could take up to a year before they are ready for transplant outdoors.

This herb prefers full sun, but will perform in partial shade. When growing woolly thyme ground cover, plant in well draining soil. Preparation of the soil is important. Rake out rocks and impurities and ensure proper drainage. If your soil is suspiciously boggy, amend it with generous amounts of sand or gravel worked into the top 6 to 8 inches.

Plant the thyme in early spring after all danger of frost has passed for the best results with spacing of 12 inches. Don’t worry if they look sparse at first. It will soon fill in to a thick carpet of softness.

Woolly Thyme Care

Once established, woolly thyme is drought resistant and care is minimal when plants are grown in soil with the right drainage. Woolly thyme ground cover may become snack food for aphids and spider mites. Protect it with frequent spraying of an organic horticultural soap. Other than that and the occasional supplemental watering in the hottest months, the herb is best ignored. It is almost a “plant it and forget it” type of herb.

Woolly thyme care doesn’t necessarily include fertilization, although an all purpose food may help specimens that are not responding to pruning or that are turning brown. More likely, browning of this plant is because of poor soil drainage. Remove the plant if possible, and amend the soil or plant in a different area.

Learning how to grow woolly thyme successfully and how to properly care for woolly thyme will include clipping and trimming. Trim back edges of the woolly thyme plant to encourage it to grow thicker. Be sure to use the clippings for cooking, potpourri or in the bath.

Hardy herbs are one of the best kept secrets for the novice gardener. Woolly thyme ground cover complements upright herbs and can help keep weeding to a minimum by shading out their seeds. Woolly thyme also grows well in mixed containers, cascading down the sides of the pot. Woolly thyme attracts pollinators too. In fact, bees will line up to sample the sweet flowers.

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