Repotting guide

When & how to repot Kamchatka Stonecrop (Phedimus kamtschaticus)

Also called Kamchatka Sedum, Orange Stonecrop, Russian Stonecrop.

More about kamchatka stonecrop

About Kamchatka Stonecrop

Phedimus kamtschaticus · also called Kamchatka Sedum, Orange Stonecrop · flowering

Phedimus kamtschaticus (formerly Sedum kamtschaticum) is a mat-forming, semi-evergreen stonecrop from northeast Asia bearing bright yellow-orange star-shaped flowers in midsummer above succulent green-bronze foliage. It is extremely hardy, drought-tolerant, and ideal for rock gardens, walls, and ground cover. Considered pet-safe based on ASPCA Sedum guidance.

Mature size: 10-20 cm tall, 30-45 cm spread

Watch for — Root rot: The only serious threat; caused by waterlogged or poorly drained soil — always plant in gritty, free-draining conditions.

How to tell kamchatka stonecrop needs repotting

Repotting on a calendar is less reliable than reading the plant. For kamchatka 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 kamchatka stonecrop

Every 2–3 years, into bone-dry mix. Kamchatka Stonecrop's growth habit — spreading mat-forming semi-evergreen succulent perennial — sets the pace. Phedimus kamtschaticus (formerly Sedum kamtschaticum) is a mat-forming, semi-evergreen stonecrop from northeast Asia bearing bright yellow-orange star-shaped flowers in midsummer above succulent green-bronze foliage. It is extremely hardy, drought-tolerant, and ideal for rock gardens, walls, and ground cover. Considered pet-safe based on ASPCA Sedum guidance.

What size pot to step kamchatka stonecrop up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Kamchatka 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 kamchatka stonecrop

Spring or summer, while kamchatka 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 kamchatka stonecrop

Repot dry. Do not water kamchatka 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 sharply draining, gritty or sandy soil; poor to average fertility 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 kamchatka 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 kamchatka 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 kamchatka stonecrop

Kamchatka Stonecrop wants sharply draining, gritty or sandy soil; poor to average fertility. Thrives in lean, sharply drained soils where few other perennials succeed. Add coarse grit generously to clay soils. A slightly acidic to neutral pH of 6.0–7.5 suits this species. Rich, fertile soils cause floppy, weak growth. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting kamchatka stonecrop — frequently asked questions

How often should you repot kamchatka stonecrop?

Every 2–3 years, into bone-dry mix for kamchatka stonecrop. Repot kamchatka stonecrop every 2–3 years into a snug pot of sharply draining, gritty or sandy soil; poor to average fertility, 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 kamchatka stonecrop need?

When is the best time of year to repot kamchatka stonecrop?

Should you water kamchatka stonecrop after repotting?

No — not straight away. Repot kamchatka 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 kamchatka stonecrop after repotting?

Not immediately. Wait about 3 weeks after repotting kamchatka 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.