When to plant
Plant in spring after last frost. Thyme is a perennial and returns each spring in zones where winters don't drop below -15°C. It tolerates light frost and is one of the easiest herbs to grow.
Soil & site
Like rosemary, thyme needs excellent drainage and tolerates poor, dry soil. pH 6.0–8.0. Avoid heavy, clay, or constantly moist soil. Raised beds with added grit are ideal. In containers, use a free-draining potting mix.
Feeding
Light feeder. One application of balanced fertilizer in spring is usually sufficient. Rich feeding reduces aromatic oil concentration.
Common problems
Root rot in wet or clay soil. Grey mould (botrytis) in humid conditions. Spider mites in hot, dry weather. Thyme is generally pest-resistant once established.
When to harvest
Thyme is ready to harvest once stems are long enough to clip — usually once the plant is 15–20 cm tall. Best flavour is just before flowering. The small leaves should be dense and intensely aromatic.
How to harvest
Snip sprigs from the tips of the plant, cutting just above a leaf node. Avoid cutting into old woody stems — they don't regenerate well. Harvest lightly throughout the season. After flowering, cut the plant back by one-third to encourage fresh growth.
Storage & use
Fresh thyme keeps 1–2 weeks in the refrigerator wrapped in a damp paper towel. Thyme dries exceptionally well and retains strong flavour — hang bunches in a dry spot for 2 weeks, then strip leaves from stems and store in an airtight jar for up to 2 years.
Useful for growing thyme
A few things that make this one easier — chosen for this plant, not a generic list.
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