Repotting guide

When & how to repot Adromischus Cristatus (Adromischus cristatus)

Also called key lime pie plant, crinkle leaf plant, pie crust plant.

More about adromischus cristatus

About Adromischus Cristatus

Adromischus cristatus · also called key lime pie plant, crinkle leaf plant · houseplant

Adromischus cristatus, the crinkle leaf plant, is a small South African succulent prized for its triangular green leaves with distinctive wavy, crimped edges and reddish-brown aerial roots clothing the stems. It stays compact and clumping, making a quirky windowsill specimen. Slow-growing and undemanding, it needs bright light and very sharp drainage to prevent rot.

Mature size: Compact, around 10-15 cm (4-6 in) tall and wide; leaves roughly 2-4 cm (1-1.5 in) long.

Watch for — Etiolation: Insufficient light stretches the stems and widens the gaps between leaves, spoiling the compact crinkled look. Move it to brighter light; behead and re-root leggy stems to restore form.

How to tell adromischus cristatus needs repotting

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

Every 2–3 years, into bone-dry mix. Adromischus Cristatus's growth habit — small, clumping succulent that branches at the base to form a low cluster of short stems. stems are notably covered in fine reddish-brown aerial roots. slow-growing; produces a tall spike of small tubular white-and-red flowers. — sets the pace. Adromischus cristatus, the crinkle leaf plant, is a small South African succulent prized for its triangular green leaves with distinctive wavy, crimped edges and reddish-brown aerial roots clothing the stems. It stays compact and clumping, making a quirky windowsill specimen. Slow-growing and undemanding, it needs bright light and very sharp drainage to prevent rot.

What size pot to step adromischus cristatus up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Adromischus Cristatus 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 adromischus cristatus

Spring or summer, while adromischus cristatus 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 adromischus cristatus

Repot dry. Do not water adromischus cristatus 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 gritty, fast-draining cactus and 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 adromischus cristatus 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 adromischus cristatus 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 adromischus cristatus

Adromischus Cristatus wants gritty, fast-draining cactus and succulent mix. Use cactus mix amended with 30-50% pumice, perlite or coarse grit. Excellent drainage is essential, as this slow grower rots in damp, heavy soil. A small terracotta pot suits its modest root system and helps it dry out. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting adromischus cristatus — frequently asked questions

How often should you repot adromischus cristatus?

Every 2–3 years, into bone-dry mix for adromischus cristatus. Repot adromischus cristatus every 2–3 years into a snug pot of gritty, fast-draining cactus and 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 adromischus cristatus need?

When is the best time of year to repot adromischus cristatus?

Should you water adromischus cristatus after repotting?

No — not straight away. Repot adromischus cristatus 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 adromischus cristatus after repotting?

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