Repotting guide

When & how to repot Lehmann's Ice Plant (Delosperma lehmannii)

Also called Lehmann's Delosperma, Trailing Ice Plant.

More about lehmann's ice plant

About Lehmann's Ice Plant

Delosperma lehmannii · also called Lehmann's Delosperma, Trailing Ice Plant · houseplant

Lehmann's Ice Plant is a prostrate South African succulent from the Aizoaceae family with fleshy, triangular blue-green leaves and bright yellow flowers in spring and summer. Ideal for hanging baskets, rock gardens, and sunny windowsills with minimal watering needs. Regarded as non-toxic and safe for pets.

Mature size: 5-10 cm tall, trailing or spreading 30-45 cm

Watch for — Root rot: Prolonged wet soil causes rapid root and stem rot. Ensure excellent drainage and allow full soil drying between waterings.

How to tell lehmann's ice plant needs repotting

Repotting on a calendar is less reliable than reading the plant. For lehmann's 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 lehmann's ice plant

Every 2–3 years, into bone-dry mix. Lehmann's Ice Plant's growth habit — prostrate, trailing mat-forming succulent — sets the pace. Lehmann's Ice Plant is a prostrate South African succulent from the Aizoaceae family with fleshy, triangular blue-green leaves and bright yellow flowers in spring and summer. Ideal for hanging baskets, rock gardens, and sunny windowsills with minimal watering needs. Regarded as non-toxic and safe for pets.

What size pot to step lehmann's 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. Lehmann's 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 lehmann's ice plant

Spring or summer, while lehmann's 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 lehmann's ice plant

Repot dry. Do not water lehmann's 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 fast-draining cactus or succulent compost 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 lehmann's 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 lehmann's 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 lehmann's ice plant

Lehmann's Ice Plant wants fast-draining cactus or succulent compost. Blend cactus compost with 40% coarse grit or perlite. Excellent drainage is non-negotiable for this species, which is prone to rot in wet soils. Slightly alkaline pH of 6.5-7.5 suits it well. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting lehmann's ice plant — frequently asked questions

How often should you repot lehmann's ice plant?

Every 2–3 years, into bone-dry mix for lehmann's ice plant. Repot lehmann's ice plant every 2–3 years into a snug pot of fast-draining cactus or succulent compost, 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 lehmann's ice plant need?

When is the best time of year to repot lehmann's ice plant?

Should you water lehmann's ice plant after repotting?

No — not straight away. Repot lehmann's 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 lehmann's ice plant after repotting?

Not immediately. Wait about 3 weeks after repotting lehmann's 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.