Repotting guide

When & how to repot Schwantes' Living Stones (Lithops schwantesii)

Also called Schwantes' Living Stones, Schwantes' Lithops.

More about schwantes' living stones

About Schwantes' Living Stones

Lithops schwantesii · also called Schwantes' Living Stones, Schwantes' Lithops · houseplant

Lithops schwantesii is a South African mimicry succulent that disguises itself as pebbles with grey-brown, windowed leaf pairs. It tolerates extreme drought and demands near-perfect drainage. Water only during its active autumn growth cycle and withhold almost entirely in summer dormancy to prevent splitting and rot.

Mature size: 2–3 cm tall, 2–3 cm wide per head; clusters spread to 10 cm or more over years

Watch for — Rot from overwatering: The most common cause of death. Never water during summer dormancy (June–August in the Northern Hemisphere). If the body softens or smells musty, unpot immediately, cut away rot, dust with sulfur powder, and allow to callous before replanting in fresh dry grit.

How to tell schwantes' living stones needs repotting

Repotting on a calendar is less reliable than reading the plant. For schwantes' living stones, 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 schwantes' living stones

Every 2–3 years, into bone-dry mix. Schwantes' Living Stones's growth habit — clumping stemless succulent; paired fleshy leaves mimic stones at soil level — sets the pace. Lithops schwantesii is a South African mimicry succulent that disguises itself as pebbles with grey-brown, windowed leaf pairs. It tolerates extreme drought and demands near-perfect drainage. Water only during its active autumn growth cycle and withhold almost entirely in summer dormancy to prevent splitting and rot.

What size pot to step schwantes' living stones up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Schwantes' Living Stones 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 schwantes' living stones

Spring or summer, while schwantes' living stones 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 schwantes' living stones

Repot dry. Do not water schwantes' living stones 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 extremely gritty mineral 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 schwantes' living stones 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 schwantes' living stones 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 schwantes' living stones

Schwantes' Living Stones wants extremely gritty mineral mix. Use 80% inorganic grit (perlite, pumice, or coarse sand) with 20% cactus compost. pH 6.0–7.5. Pot in terracotta to wick excess moisture. Avoid any peat or high-organic mixes that retain water. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting schwantes' living stones — frequently asked questions

How often should you repot schwantes' living stones?

Every 2–3 years, into bone-dry mix for schwantes' living stones. Repot schwantes' living stones every 2–3 years into a snug pot of extremely gritty mineral 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 schwantes' living stones need?

When is the best time of year to repot schwantes' living stones?

Should you water schwantes' living stones after repotting?

No — not straight away. Repot schwantes' living stones 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 schwantes' living stones after repotting?

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