Repotting guide

When & how to repot Compact Ice Plant (Delosperma congestum)

Also called Compact Ice Plant, Gold Nugget Ice Plant, Hardy Ice Plant.

More about compact ice plant

About Compact Ice Plant

Delosperma congestum · also called Compact Ice Plant, Gold Nugget Ice Plant · houseplant

Delosperma congestum is a very cold-hardy, mat-forming Aizoaceae succulent from the Drakensberg mountains of South Africa. It produces abundant bright yellow flowers in summer and is one of the toughest ice plants for temperate gardens. It thrives in full sun with excellent drainage. Not ASPCA-listed; treat cautiously around pets.

Mature size: 5-8 cm tall, spreading to 30-50 cm wide

How to tell compact ice plant needs repotting

Repotting on a calendar is less reliable than reading the plant. For compact ice plant, 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 compact ice plant

Every 2–3 years, into bone-dry mix. Compact Ice Plant's growth habit — low, dense, mat-forming succulent — sets the pace. Delosperma congestum is a very cold-hardy, mat-forming Aizoaceae succulent from the Drakensberg mountains of South Africa. It produces abundant bright yellow flowers in summer and is one of the toughest ice plants for temperate gardens. It thrives in full sun with excellent drainage. Not ASPCA-listed; treat cautiously around pets.

What size pot to step compact ice plant up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Compact Ice Plant 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 compact ice plant

Spring or summer, while compact ice plant 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 compact ice plant

Repot dry. Do not water compact ice plant 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 free-draining gritty loam or cactus 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 compact ice plant 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 compact ice plant 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 compact ice plant

Compact Ice Plant wants free-draining gritty loam or cactus mix. Use 60% loam or cactus compost and 40% coarse grit or perlite. Excellent drainage is the single most important requirement. Heavy clay or moisture-retentive soil causes crown rot. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting compact ice plant — frequently asked questions

How often should you repot compact ice plant?

Every 2–3 years, into bone-dry mix for compact ice plant. Repot compact ice plant every 2–3 years into a snug pot of free-draining gritty loam or cactus 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 compact ice plant need?

When is the best time of year to repot compact ice plant?

Should you water compact ice plant after repotting?

No — not straight away. Repot compact ice plant 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 compact ice plant after repotting?

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