Thyme, Winter (Common Thyme)

Thyme prefers well-draining soil with a pH between 5.5 to 7.0. It can grow in a range of soils from sandy to loamy, but it doesn't do well in heavy, clay soils. Thyme requires full sun for optimal growth, so it's best to plant it in a location that receives at least 6-8 hours of direct sunlight per day. In areas with hot summers, some partial shade in the afternoon may be beneficial. Thyme is a drought-tolerant herb and doesn't require frequent watering, but it's important to water deeply when the soil dries out to ensure healthy growth.

Sow seeds indoors 8-10 weeks before last frost.  Surface sow several seeds per pot and cover with a fine layer of soil.  Keep moist until germination has occurred.  Once seedlings have 3-4 true leaves, thin to one plant per 4" pot. 

Transplant outdoors after danger of frost has passed, spacing plants 6-8" apart in rows 12-18" apart.

Insect Pests

Diseases & Other Problems

To harvest thyme, cut the stems about one-third of the way down from the top using sharp scissors or pruning shears. It's best to harvest thyme in the morning after the dew has dried but before the sun gets too hot. Thyme can be dried by hanging the stems upside down in a warm, dry place with good air circulation until the leaves are dry and brittle. Once the thyme is dry, remove the leaves from the stems and store them in an airtight container in a cool, dark place for up to six months. Alternatively, thyme can be frozen or stored in oil or vinegar for longer-term storage.

CONSIDERATIONS:

Thyme is a gynodioecious plant with some flowers bearing both male and female organs and others only female. It is predominantly pollinated by insects and therefore outcrossing is common. While not a concern for most gardeners, if you wish to preserve varietal purity of your cultivar and other varieties are present in your garden (or neighborhood) it is necessary to cage the plants and introduce pollinators to perform the pollination. Otherwise, plants may be left to pollinate freely.

HARVESTING SEED:

To harvest thyme seeds, wait for the plant to bloom and the seed heads to form. Cut the seed heads with clean scissors or pruning shears and place them in a paper bag or envelope to dry. Hang the bag or envelope in a warm, dry place with good air circulation for several days to a week. Once the seed heads are completely dry, gently shake or rub them to release the seeds and remove any debris or chaff. Place the thyme seeds in an airtight container labeled with the date and type of thyme and store in a cool, dry place until ready to use. Thyme seeds are very small and can be difficult to harvest and clean, so the yield may not be large.

SEED LONGETIVITY:

Thyme seeds can remain viable for up to three years if stored properly in a cool, dry place.