Repotting guide

When & how to repot Gibbaeum heathii (Gibbaeum heathii)

Also called Heath's gibbaeum, white blob plant.

More about gibbaeum heathii

About Gibbaeum heathii

Gibbaeum heathii · also called Heath's gibbaeum, white blob plant · houseplant

Gibbaeum heathii is a dwarf South African mesemb from the Klein Karoo, forming a fat, near-spherical pair of grey-green to white succulent bodies barely 3 cm across. A winter grower that goes dormant in summer, it needs blazing light, a gritty mineral mix, and very sparing water. Pink-white daisy flowers open in late winter to spring.

Mature size: Individual bodies about 2-3 cm tall and wide; clumps reach 8-12 cm across over many years.

Watch for — Mealybugs: White cottony clusters in the leaf cleft and on roots. Spot-treat with 70% isopropyl alcohol on a cotton bud and inspect roots at repotting.

How to tell gibbaeum heathii needs repotting

Repotting on a calendar is less reliable than reading the plant. For gibbaeum heathii, 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 gibbaeum heathii

Every 2–3 years, into bone-dry mix. Gibbaeum heathii's growth habit — clump-forming dwarf succulent; each head is a fused, fat near-spherical pair of leaves that slowly offsets into small mats. — sets the pace. Gibbaeum heathii is a dwarf South African mesemb from the Klein Karoo, forming a fat, near-spherical pair of grey-green to white succulent bodies barely 3 cm across. A winter grower that goes dormant in summer, it needs blazing light, a gritty mineral mix, and very sparing water. Pink-white daisy flowers open in late winter to spring.

What size pot to step gibbaeum heathii up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Gibbaeum heathii 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 gibbaeum heathii

Spring or summer, while gibbaeum heathii 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 gibbaeum heathii

Repot dry. Do not water gibbaeum heathii 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 loam-based mineral mix with at least 50% grit 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 gibbaeum heathii 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 gibbaeum heathii 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 gibbaeum heathii

Gibbaeum heathii wants loam-based mineral mix with at least 50% grit. Use a loam-based compost (John Innes No.2) cut heavily with horticultural grit, pumice or perlite so water drains in seconds. A gritty top-dressing keeps the swollen body off damp soil. Always use a pot with drainage holes. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting gibbaeum heathii — frequently asked questions

How often should you repot gibbaeum heathii?

Every 2–3 years, into bone-dry mix for gibbaeum heathii. Repot gibbaeum heathii every 2–3 years into a snug pot of loam-based mineral mix with at least 50% grit, 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 gibbaeum heathii need?

When is the best time of year to repot gibbaeum heathii?

Should you water gibbaeum heathii after repotting?

No — not straight away. Repot gibbaeum heathii 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 gibbaeum heathii after repotting?

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