Repotting guide

When & how to repot Two-Row Stonecrop (Sedum spurium)

Also called Two-Row Stonecrop, Caucasian Stonecrop, Running Stonecrop.

More about two-row stonecrop

About Two-Row Stonecrop

Sedum spurium · also called Two-Row Stonecrop, Caucasian Stonecrop · flowering

Sedum spurium is a low, mat-forming stonecrop native to the Caucasus, producing semi-evergreen, opposite leaves arranged in two distinct rows along trailing stems. Flat clusters of starry pink-to-magenta flowers appear in mid-to-late summer. Excellent as drought-tolerant ground cover in sunny, well-drained spots, cascading over walls or filling gravel gardens.

Mature size: 5-15 cm tall, spreading 30-60 cm or more as ground cover

Watch for — Root and crown rot: The primary cause of death. Heavy clay soil or persistent winter wet kills the crown. Always plant in well-drained or gritty soil and avoid mulching over the crown.

How to tell two-row stonecrop needs repotting

Repotting on a calendar is less reliable than reading the plant. For two-row stonecrop, 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 two-row stonecrop

Every 2–3 years, into bone-dry mix. Two-Row Stonecrop's growth habit — low, trailing, mat-forming semi-evergreen succulent perennial. stems root at nodes as they spread, forming a dense carpet rarely exceeding 10-15 cm tall. — sets the pace. Sedum spurium is a low, mat-forming stonecrop native to the Caucasus, producing semi-evergreen, opposite leaves arranged in two distinct rows along trailing stems. Flat clusters of starry pink-to-magenta flowers appear in mid-to-late summer. Excellent as drought-tolerant ground cover in sunny, well-drained spots, cascading over walls or filling gravel gardens.

What size pot to step two-row stonecrop up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Two-Row Stonecrop 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 two-row stonecrop

Spring or summer, while two-row stonecrop 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 two-row stonecrop

Repot dry. Do not water two-row stonecrop 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, sandy, sharply drained soil 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 two-row stonecrop 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 two-row stonecrop 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 two-row stonecrop

Two-Row Stonecrop wants gritty, sandy, sharply drained soil. Thrives in poor to average soil with sharp drainage and neutral to slightly alkaline pH. Will rot in clay or moisture-retentive soils. On very fertile ground growth is lax and floppy. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting two-row stonecrop — frequently asked questions

How often should you repot two-row stonecrop?

Every 2–3 years, into bone-dry mix for two-row stonecrop. Repot two-row stonecrop every 2–3 years into a snug pot of gritty, sandy, sharply drained soil, 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 two-row stonecrop need?

When is the best time of year to repot two-row stonecrop?

Should you water two-row stonecrop after repotting?

No — not straight away. Repot two-row stonecrop 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 two-row stonecrop after repotting?

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