Repotting guide

When & how to repot Haworth's Lampranthus (Lampranthus haworthii)

Also called Haworth's Lampranthus, Purple Brightfig, Haworth's Ice Plant.

More about haworth's lampranthus

About Haworth's Lampranthus

Lampranthus haworthii · also called Haworth's Lampranthus, Purple Brightfig · flowering

A tall, erect South African subshrub with glaucous, cylindrical leaves and large, showy white to pale mauve or light pink flowers up to 7 cm across, blooming mid-winter to early spring. One of the larger Lampranthus species, suited to Mediterranean gardens, coastal slopes, and frost-free rockeries. Drought-tolerant and fast-growing once established.

Mature size: 60–70 cm tall; up to 1 m wide

Watch for — Root and crown rot: Most commonly triggered by poorly draining soil or overwatering during summer dormancy. Remove affected roots, dust with sulphur fungicide, and repot or replant in well-draining gritty compost with improved drainage.

How to tell haworth's lampranthus needs repotting

Repotting on a calendar is less reliable than reading the plant. For haworth's lampranthus, 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 haworth's lampranthus

Every 2–3 years, into bone-dry mix. Haworth's Lampranthus's growth habit — tall, erect, branching subshrub — sets the pace. A tall, erect South African subshrub with glaucous, cylindrical leaves and large, showy white to pale mauve or light pink flowers up to 7 cm across, blooming mid-winter to early spring. One of the larger Lampranthus species, suited to Mediterranean gardens, coastal slopes, and frost-free rockeries. Drought-tolerant and fast-growing once established.

What size pot to step haworth's lampranthus up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Haworth's Lampranthus 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 haworth's lampranthus

Spring or summer, while haworth's lampranthus 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 haworth's lampranthus

Repot dry. Do not water haworth's lampranthus 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 sandy, well-drained loam or gritty 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 haworth's lampranthus 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 haworth's lampranthus 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 haworth's lampranthus

Haworth's Lampranthus wants sandy, well-drained loam or gritty compost. Prefers light, lean soils with rapid drainage. Tolerates rocky and sandy substrates. A top-dress of coarse river sand around the stem base helps prevent crown rot. Avoid waterlogged or clay-rich soils. Plant on a slope or raised bed where possible to improve drainage. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting haworth's lampranthus — frequently asked questions

How often should you repot haworth's lampranthus?

Every 2–3 years, into bone-dry mix for haworth's lampranthus. Repot haworth's lampranthus every 2–3 years into a snug pot of sandy, well-drained loam or gritty 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 haworth's lampranthus need?

When is the best time of year to repot haworth's lampranthus?

Should you water haworth's lampranthus after repotting?

No — not straight away. Repot haworth's lampranthus 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 haworth's lampranthus after repotting?

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