Thymus vulgaris
Thyme is the most effortless herb in the garden — drought-tolerant, compact, evergreen, and packed with aromatic essential oils that intensify in poor, dry soil and hot sun. A staple of Mediterranean and British cooking alike, it flavours everything from a Sunday roast to a bouquet garni, marinades, and bread. Once established, thyme asks for almost nothing and delivers fresh sprigs year-round, even in the depths of a UK winter.
Common thyme is the backbone of herb gardens and kitchens — strong, classic, and endlessly versatile. Lemon thyme adds a bright citrus dimension perfect for fish, chicken, and desserts. Silver Posie is one of the most beautiful ornamental herbs available, with silver-edged leaves and excellent culinary properties. Creeping thyme is a ground-cover plant that releases scent when walked on and produces a carpet of pink flowers loved by bees. Silver Queen (AGM) and Bertram Anderson (AGM) are the two finest ornamental thymes in cultivation, combining outstanding beauty with genuine culinary value.
The number of varieties shown for each crop is based on UK consumption data (2025/26) — the more popular the crop, the more variety choices we include.
The standard culinary thyme. Strong, classic flavour with warm, aromatic, slightly peppery notes. Essential in bouquet garni, stocks, stews, and roasts. Upright habit, small grey-green leaves, pink-lilac flowers. The most productive variety for kitchen use. The backbone of any herb garden.
Thymus x citriodorus. A distinct species with a pronounced lemon-citrus fragrance alongside the classic thyme warmth. Outstanding with fish, chicken, salad dressings, and desserts. Slightly less hardy than common thyme but reliably perennial in most UK gardens. Pale pink flowers. One of the most useful culinary herbs available.
A variegated common thyme with silver-white leaf margins and a compact, mounding habit. Highly ornamental but fully culinary — the flavour is essentially identical to common thyme. One of the prettiest herbs in the kitchen garden. Soft pink flowers. Excellent as a container plant or edging specimen.
Thymus serpyllum. A prostrate, ground-covering thyme that spreads to 60cm or more. Releases its fragrance intensely when walked upon — the classic choice for planting between paving stones. Covered in tiny pink-purple flowers from June to August. Good culinary properties but mainly grown for ornamental and ground-cover use.
RHS Award of Garden Merit. One of the finest ornamental thymes, with clearly defined silver-white leaf margins giving a clean, crisp variegated appearance. Very compact and tidy habit. Excellent culinary properties alongside exceptional ornamental value. A reliable, well-behaved plant that performs consistently in UK gardens. Pink flowers in summer.
RHS Award of Garden Merit (Thymus pulegioides). A distinctive thyme with gold-flushed leaves that take on stronger yellow tones in good light. Low, spreading habit. Good culinary properties and outstanding ornamental value. The gold colouration contrasts beautifully with silver-leaved forms. Lavender-pink flowers in summer. Very hardy and reliable.
Common thyme and lemon thyme are available as plants from virtually all garden centres from spring onwards. Silver Posie, Silver Queen, and Creeping Thyme are widely stocked by herb specialists. Bertram Anderson is best sought from specialist herb and alpine nurseries. Seed is available for common thyme from most seed suppliers — other varieties do not come true from seed and must be purchased as plants. All thymes can be propagated from cuttings taken in June–August, making it easy to produce replacement plants from a single purchase.
Thyme is at its best in a sunny, free-draining border — particularly on a south-facing slope, against a warm wall, or in a raised bed with gritty soil. It makes an excellent edging plant along paths where brushing past releases the fragrance. Plant 30–45cm apart and allow to spread into a low, fragrant mound.
Terracotta pots are ideal for thyme in UK gardens — the porous material improves drainage and warms in sun. Use a very gritty compost mix (50% peat-free compost, 50% horticultural grit). Container thyme needs no feeding and very little watering once established. Move under shelter in the wettest months of winter to prevent root-rot in waterlogged compost.
Both are Mediterranean herbs sharing the same preference for dry, free-draining, sunny conditions.
Classic Mediterranean herb-bed companions with matching water and sun needs.
Grows well alongside oregano — both are drought-tolerant and thrive in poor, dry soil.
Select the sunniest, most free-draining position available. Against a south-facing wall or fence is ideal. On heavy clay, prepare the area by digging in a generous amount of horticultural grit before planting — poor drainage is the main cause of thyme failure in UK gardens.
Plant at the same depth as in the pot — do not bury the woody base deeper than it was growing. Firm in well and water once. After the initial watering, allow the soil to dry between waterings to encourage the drought-tolerance thyme naturally develops.
Spread a 3–5cm layer of coarse grit or fine gravel around the base of each plant. This improves drainage, reflects heat, reduces slug activity, and gives the plant the Mediterranean microclimate it prefers. Do not use bark or wood chip mulch.
Thyme can be lightly harvested from the moment of planting. Cut shoot tips with scissors — never pull individual leaves. Regular light harvesting encourages bushy growth and delays the onset of woodiness.
After the first flush of flowers fades (usually June–July), cut the plant back by one third. This is the most important single maintenance task for thyme — it prevents the plant becoming woody and leggy and extends productive life by years.
Take softwood cuttings in June–August while plants are productive. Root in gritty compost in a propagator or cold frame. These become the replacement plants when the original specimens become too woody. One cutting season produces all the plants you will ever need.
| Region | Sow / plant | Harvest | Notes |
|---|---|---|---|
| Scotland & Far North | May–Jun | Jun–Feb | N/A · Plant: May–Jun · Harvest: Jun–Feb |
| Northern England | Apr–Jun | Apr–Mar | N/A · Plant: Apr–Jun · Harvest: Apr–Mar |
| Midlands & Wales | Apr–May | Apr–Mar | N/A · Plant: Apr–May · Harvest: Apr–Mar |
| Ireland & Isle of Man | Apr–May | Apr–Mar | N/A · Plant: Apr–May · Harvest: Apr–Mar |
| South & SE England | Mar–May | Jan–Dec | N/A · Plant: Mar–May · Harvest: Year-round |
| South Coast & SW | Mar–Apr | Jan–Dec | N/A · Plant: Mar–Apr · Harvest: Year-round |
Cut 5–8cm non-flowering shoot tips just below a node using clean, sharp scissors. Take 6–8 cuttings per session — thyme rooting success is good but not 100%. Avoid any shoots with flower buds.
Remove all leaves from the lower half of each cutting, leaving just a few leaves at the tip. Dip the cut end briefly in hormone rooting powder or gel — this genuinely improves rooting speed in thyme.
Insert cuttings to half their length around the edge of a 9cm pot filled with 50% compost and 50% horticultural perlite or grit. Firm in gently. Water from below by sitting the pot in a tray.
Place in a cold frame or unheated propagator to maintain humidity and protect from wind. Summer cuttings do not need bottom heat. Keep out of direct hot sun which wilts cuttings before they root.
Tug cuttings gently after 3 weeks. Resistance means roots have formed. Once rooted, pot individually into 9cm pots of gritty compost and grow on in the cold frame until autumn planting.
September–October is an excellent time to plant rooted thyme cuttings — the soil is still warm and plants establish well before winter. Alternatively, overwinter in the cold frame and plant out in April–May.
| Region | Sow / plant | Harvest | Notes |
|---|---|---|---|
| Scotland & Far North | Jun–Sep | — | Jun–Jul · Plant: Aug–Sep · Harvest: Following Apr onwards |
| Northern England | Jun–Sep | — | Jun–Aug · Plant: Aug–Sep · Harvest: Following Apr onwards |
| Midlands & Wales | Jun–Sep | Apr | Jun–Aug · Plant: Aug–Sep · Harvest: Apr onwards |
| Ireland & Isle of Man | Jun–Sep | Apr | Jun–Aug · Plant: Aug–Sep · Harvest: Apr onwards |
| South & SE England | Jun–Sep | Jan–Dec | Jun–Aug · Plant: Sep · Harvest: Year-round |
| South Coast & SW | Jun–Sep | Jan–Dec | Jun–Aug · Plant: Sep · Harvest: Year-round |
Thyme cuttings root well without bottom heat in summer — a cold frame or sheltered windowsill is entirely adequate for June to August cuttings. A heated propagator is useful only for very early season cuttings (May) or for seed germination in March–April, where a consistent 15–18°C speeds up the rather slow germination of thyme seed.
An unheated propagator in a warm position is adequate for cuttings taken from June to August, when ambient temperatures are sufficient for rooting. For seed germination before May, bottom heat gives significantly better results.
Standard unheated propagator — A lidded seed tray traps warmth and humidity around germinating seeds without electricity. Performance depends entirely on room temperature — best placed on a warm windowsill and used from March onwards. Replace the lid promptly after watering. Remove it completely the moment seedlings emerge to prevent damping off.
Cut 5–8cm non-flowering shoot tips in June–August. Remove lower leaves, leaving just the top 4–6 leaves. Dip in rooting hormone powder for best results.
Insert around the edge of a 9cm pot of 50:50 compost and perlite. 4–6 cuttings per pot. Firm gently and water from below. Label with variety and date.
Cover the pot with a clear polythene bag over a wire hoop to maintain humidity without overheating. Place in bright indirect light — avoid direct summer sun which scorches cuttings.
Tug gently after 3 weeks. Resistance confirms rooting. Remove the bag and allow to grow on in good light for 2–3 weeks before potting individually.
Pot rooted cuttings into individual 9cm pots of gritty compost. Overwinter in an unheated cold frame — thyme is fully hardy but young rooted cuttings establish better with this protection in their first winter.
Cut thyme back by one third immediately after flowering each year — this is the most critical maintenance task. Never cut into old, brown woody stems without visible new growth below, as thyme does not regenerate from old wood. The cut should be into green, leafy growth. This annual trim prevents the plant becoming a woody, unproductive tangle and extends productive life by several years. Combined with replacement every 3–4 years from new cuttings, it keeps thyme permanently productive.
Once established, thyme in the ground needs watering only in prolonged drought — it is one of the most drought-tolerant plants in the herb garden. Container thyme needs more frequent watering but should always be allowed to dry out between waterings. The greatest enemy of thyme is waterlogging, particularly in winter — wet roots in cold conditions cause root rot and plant collapse within weeks. Perfect drainage is non-negotiable.
Thyme plants become increasingly woody and unproductive after 3–4 years. Take softwood cuttings every 2–3 years in June–August as insurance against plant loss in harsh winters and to maintain a supply of vigorous young plants. A single session of 6–8 cuttings produces all the replacement plants needed. Young plants propagated from your best specimens maintain variety characteristics and are ready to plant out the following spring.
Thyme is very vulnerable to waterlogging in winter. Even one winter of wet roots can kill an established plant. Ensure perfect drainage at all times — a raised bed, a gravel-topped border, or a terracotta pot with gritty compost is essential in heavy clay soils or areas with high winter rainfall.
Full identification and treatment advice is in the Pests and Diseases sections.
Thyme is an evergreen perennial — fresh sprigs are available directly from the plant year-round, including in winter. For kitchen convenience, cut sprigs can be stored standing in a small glass of water on the worktop for up to a week, or wrapped in a damp paper towel in the fridge for up to 10 days. Fresh thyme has a significantly stronger flavour than dried — use less than you think you need.
Thyme dries exceptionally well and is one of the best herbs for drying. Tie small bunches and hang upside down in a warm, airy place away from direct light for 2–3 weeks until completely dry. Strip the tiny leaves from the stems and store in an airtight jar. Dried thyme retains good flavour for up to 2 years — far longer than most dried herbs. The ideal time to harvest for drying is just before the flowers open, when essential oil content is highest.
💡 Plant thyme between paving stones on a sunny patio — it tolerates light foot traffic and releases its fragrance every time you brush past.
Harvest thyme for drying just before the flowers fully open in June — this is when the essential oil content, and therefore flavour, is at its peak.
💡 Grow Silver Queen and Bertram Anderson side by side — the silver and gold variegation creates a striking ornamental combination that is also fully culinary.