Repotting guide

When & how to repot Curry plant (Helichrysum italicum)

Also called Curry plant, Immortelle, Italian everlasting.

More about curry plant

About Curry plant

Helichrysum italicum · also called Curry plant, Immortelle · herb

Curry plant is an aromatic Mediterranean sub-shrub with silver-grey, needle-like foliage that releases a strong curry-like fragrance when brushed. It thrives in full sun with lean, alkaline, very well-drained soil and is moderately drought-tolerant once established. Small, bright yellow button flowers appear in summer and attract pollinators.

Mature size: 30–50 cm tall, 50–90 cm wide

Watch for — Root rot from winter wet: The leading cause of loss in temperate climates. Improve soil drainage with grit, raise planting level slightly, and protect from prolonged winter rainfall with a cloche or placing in a pot under cover.

How to tell curry plant needs repotting

Repotting on a calendar is less reliable than reading the plant. For curry plant, 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 curry plant

Every 2–3 years, into bone-dry mix. Curry plant's growth habit — mounding, bushy evergreen sub-shrub — sets the pace. Curry plant is an aromatic Mediterranean sub-shrub with silver-grey, needle-like foliage that releases a strong curry-like fragrance when brushed. It thrives in full sun with lean, alkaline, very well-drained soil and is moderately drought-tolerant once established. Small, bright yellow button flowers appear in summer and attract pollinators.

What size pot to step curry plant up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Curry plant 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 curry plant

Spring or summer, while curry plant 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 curry plant

Repot dry. Do not water curry plant 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 poor to moderately fertile, very well-drained, neutral to alkaline 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 curry plant 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 curry plant 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 curry plant

Curry plant wants poor to moderately fertile, very well-drained, neutral to alkaline. Sandy, chalky, or gritty loam is ideal. Avoid clay or moisture-retaining soils. Incorporates grit or perlite into heavier soils. Does not require feeding; rich soil leads to soft, frost-susceptible growth. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting curry plant — frequently asked questions

How often should you repot curry plant?

Every 2–3 years, into bone-dry mix for curry plant. Repot curry plant every 2–3 years into a snug pot of poor to moderately fertile, very well-drained, neutral to alkaline, 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 curry plant need?

When is the best time of year to repot curry plant?

Should you water curry plant after repotting?

No — not straight away. Repot curry plant 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 curry plant after repotting?

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