Repotting guide

When & how to repot Camphor Thyme (Thymus camphoratus)

Also called Camphor Thyme, Portuguese Thyme.

More about camphor thyme

About Camphor Thyme

Thymus camphoratus · also called Camphor Thyme, Portuguese Thyme · herb

Camphor Thyme is a compact, grey-leaved Mediterranean species from Portugal with a strong, distinctive camphor-pine scent rather than the culinary thyme aroma. It forms a small neat mound covered in pink-purple flowers in summer. Grown mainly as an ornamental and insect-repellent herb, it demands excellent drainage and full sun.

Mature size: 20–30 cm tall, 30–40 cm wide

How to tell camphor thyme needs repotting

Repotting on a calendar is less reliable than reading the plant. For camphor thyme, watch for these signs:

Roots growing out of the drainage holes, or the rootball lifting the plant proud of the rim.
Soil that has shrunk away from the pot sides and no longer holds water.
The pot is unstable because the plant has grown top-heavy.
Old, compacted, broken-down mix that stays wet too long — for a succulent that is a rot risk, so refresh it even if the pot size is fine.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot camphor thyme

Every 2–3 years, into bone-dry mix. Camphor Thyme's growth habit — compact mounding subshrub; evergreen — sets the pace. Camphor Thyme is a compact, grey-leaved Mediterranean species from Portugal with a strong, distinctive camphor-pine scent rather than the culinary thyme aroma. It forms a small neat mound covered in pink-purple flowers in summer. Grown mainly as an ornamental and insect-repellent herb, it demands excellent drainage and full sun.

What size pot to step camphor thyme up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Camphor Thyme stores water and rots in a large pot of slow-drying soil. A tight terracotta pot that dries fast is far safer than a generous plastic one. Never up-pot a succulent by several sizes.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot camphor thyme

Spring or summer, while camphor thyme is in active growth and warm, is best — roots recover fastest then, and the plant is not sitting in cool damp soil. Avoid repotting a succulent in winter dormancy.

Step-by-step: repotting camphor thyme

Repot dry. Do not water camphor thyme for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty very sharply drained sandy or gravelly soil ready.
Tip it out and clean the roots. Slide the plant out, crumble off the old soil, and trim any black, mushy or dead roots with clean snips.
Pot into dry mix. Set camphor thyme at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
Wait a week before watering. Leave it completely dry and out of harsh sun for about 7 days so any damaged roots callus. Only then water lightly.

Aftercare

Keep camphor thyme completely dry and out of fierce sun for about a week so any nicked roots callus before they meet moisture; watering a freshly repotted succulent is the classic way to rot it. Then resume the normal lean, dry rhythm. Do not fertilise for about 3 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for camphor thyme

Camphor Thyme wants very sharply drained sandy or gravelly soil. Prefers poor, stony, low-fertility soil similar to its native Portuguese coastal habitat. A gritty alpine or Mediterranean mix (60% grit: 40% compost) is optimal. pH 6.5–8.0. Avoid any moisture-retentive medium. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting camphor thyme — frequently asked questions

How often should you repot camphor thyme?

Every 2–3 years, into bone-dry mix for camphor thyme. Repot camphor thyme every 2–3 years into a snug pot of very sharply drained sandy or gravelly soil, ideally in spring or summer. Let it sit in dry soil and do not water for about a week afterwards so any nicked roots can callus. Over-potting and watering straight away is what rots succulents.

What size pot does camphor thyme need?

When is the best time of year to repot camphor thyme?

Should you water camphor thyme after repotting?

No — not straight away. Repot camphor thyme into dry mix and wait about a week before the first watering so any damaged roots callus over. Watering a freshly repotted succulent is the single most common way to rot one.

Should you fertilise camphor thyme after repotting?

Not immediately. Wait about 3 weeks after repotting camphor thyme. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.