Repotting guide

When & how to repot Large-flowered Tylecodon (Tylecodon grandiflorus)

Also called Large-flowered Tylecodon, Dwarf Butter Tree.

More about large-flowered tylecodon

About Large-flowered Tylecodon

Tylecodon grandiflorus · also called Large-flowered Tylecodon, Dwarf Butter Tree · houseplant

A low-growing South African succulent with a thick, gnarled caudex and sprawling branches, celebrated for producing the largest flowers in the genus — striking orange-red tubes up to 4 cm long that appear in late summer when the plant is completely leafless. Winter-growing and summer-dormant. Fully toxic; keep away from pets and children.

Mature size: Branches up to 50 cm (20 in) long; plant forms a low mound up to 40 cm (16 in) wide

Watch for — Root rot from summer overwatering: The most frequent cause of death. When branches are bare in summer, the plant needs very little water. A single overwatering during peak dormancy can cause rapid collapse of the root system.

How to tell large-flowered tylecodon needs repotting

Repotting on a calendar is less reliable than reading the plant. For large-flowered tylecodon, 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 large-flowered tylecodon

Every 2–3 years, into bone-dry mix. Large-flowered Tylecodon's growth habit — low-growing, sprawling caudiciform shrublet with a thick irregular caudex and decumbent to spreading branches — sets the pace. A low-growing South African succulent with a thick, gnarled caudex and sprawling branches, celebrated for producing the largest flowers in the genus — striking orange-red tubes up to 4 cm long that appear in late summer when the plant is completely leafless. Winter-growing and summer-dormant. Fully toxic; keep away from pets and children.

What size pot to step large-flowered tylecodon up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Large-flowered Tylecodon 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 large-flowered tylecodon

Spring or summer, while large-flowered tylecodon 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 large-flowered tylecodon

Repot dry. Do not water large-flowered tylecodon 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 coarse, fast-draining 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 large-flowered tylecodon 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 large-flowered tylecodon 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 large-flowered tylecodon

Large-flowered Tylecodon wants coarse, fast-draining succulent mix. Use a cactus compost blended with 30–50% coarse grit or pumice. The sprawling branches mean a wide, shallow clay pot with excellent drainage is ideal. Avoid any peat-heavy or moisture-retaining compost. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting large-flowered tylecodon — frequently asked questions

How often should you repot large-flowered tylecodon?

Every 2–3 years, into bone-dry mix for large-flowered tylecodon. Repot large-flowered tylecodon every 2–3 years into a snug pot of coarse, fast-draining 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 large-flowered tylecodon need?

When is the best time of year to repot large-flowered tylecodon?

Should you water large-flowered tylecodon after repotting?

No — not straight away. Repot large-flowered tylecodon 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 large-flowered tylecodon after repotting?

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