Repotting guide

When & how to repot Curio Articulatus (Curio articulatus)

Also called string of hot dogs, candle plant, jointed senecio.

More about curio articulatus

About Curio Articulatus

Curio articulatus · also called string of hot dogs, candle plant · houseplant

Curio articulatus (formerly Senecio articulatus), the candle plant or string of hot dogs, is a South African succulent with jointed, sausage-shaped blue-grey stems topped by arrow-shaped leaves. The segments detach and root easily, so it spreads readily. It needs sharp drainage and lean watering, and like its Senecio relatives it is toxic to pets.

Mature size: Reaches around 30-60 cm (12-24 in) tall; segments are roughly 3-8 cm long and finger-thick.

Watch for — Root and stem rot from overwatering: Soggy soil turns the fleshy segments soft, yellow and mushy. Use a gritty mix and a pot with drainage, and let the soil dry out completely between waterings, especially in summer dormancy.

How to tell curio articulatus needs repotting

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

Every 2–3 years, into bone-dry mix. Curio Articulatus's growth habit — an upright-to-sprawling succulent built from jointed, sausage- or candle-shaped blue-grey stem segments that look constricted at the nodes, topped with arrow-shaped leaves that often drop in dormancy. segments break off and root where they fall, spreading the plant. small clusters of pale, daisy-like flowers can appear on mature plants. — sets the pace. Curio articulatus (formerly Senecio articulatus), the candle plant or string of hot dogs, is a South African succulent with jointed, sausage-shaped blue-grey stems topped by arrow-shaped leaves. The segments detach and root easily, so it spreads readily. It needs sharp drainage and lean watering, and like its Senecio relatives it is toxic to pets.

What size pot to step curio articulatus up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Curio Articulatus 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 curio articulatus

Spring or summer, while curio articulatus 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 curio articulatus

Repot dry. Do not water curio articulatus 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 free-draining cactus or succulent mix 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 curio articulatus 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 curio articulatus 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 curio articulatus

Curio Articulatus wants free-draining cactus or succulent mix. Use a gritty, fast-draining medium: bagged cactus and succulent compost loosened with extra perlite, pumice or coarse sand, roughly one part grit to two parts compost. The aim is quick drainage, since the fleshy stems and shallow roots rot easily in soggy soil. Always plant in a pot with drainage holes and consider a grit top-dressing. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting curio articulatus — frequently asked questions

How often should you repot curio articulatus?

Every 2–3 years, into bone-dry mix for curio articulatus. Repot curio articulatus every 2–3 years into a snug pot of free-draining cactus or succulent mix, 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 curio articulatus need?

When is the best time of year to repot curio articulatus?

Should you water curio articulatus after repotting?

No — not straight away. Repot curio articulatus 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 curio articulatus after repotting?

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