Repotting guide

When & how to repot Stapelia hirsuta var. vetula (Stapelia hirsuta var. vetula)

Also called old hairy stapelia.

More about stapelia hirsuta var. vetula

About Stapelia hirsuta var. vetula

Stapelia hirsuta var. vetula · also called old hairy stapelia · houseplant

A clumping South African stem succulent in the milkweed family, this variety of the hairy starfish flower produces large, hairy, star-shaped maroon blooms that smell of carrion to attract fly pollinators. It has soft, four-angled toothed green stems, no true leaves, and needs gritty soil, strong light, and careful winter watering.

Mature size: Stems roughly 10-20 cm tall, clumps spreading to 20-30 cm wide over time.

Watch for — Basal stem rot: The most common killer. Caused by overwatering or poorly draining soil. Cut away mushy black tissue, let healthy stems callus, and re-root in dry gritty mix.

How to tell stapelia hirsuta var. vetula needs repotting

Repotting on a calendar is less reliable than reading the plant. For stapelia hirsuta var. vetula, 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 stapelia hirsuta var. vetula

Every 2–3 years, into bone-dry mix. Stapelia hirsuta var. vetula's growth habit — clumping, mat-forming stem succulent with erect to spreading four-angled, soft-toothed green stems and no persistent leaves; spreads to form low colonies. — sets the pace. A clumping South African stem succulent in the milkweed family, this variety of the hairy starfish flower produces large, hairy, star-shaped maroon blooms that smell of carrion to attract fly pollinators. It has soft, four-angled toothed green stems, no true leaves, and needs gritty soil, strong light, and careful winter watering.

What size pot to step stapelia hirsuta var. vetula up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Stapelia hirsuta var. vetula 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 stapelia hirsuta var. vetula

Spring or summer, while stapelia hirsuta var. vetula 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 stapelia hirsuta var. vetula

Repot dry. Do not water stapelia hirsuta var. vetula 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 cactus and succulent 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 stapelia hirsuta var. vetula 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 stapelia hirsuta var. vetula 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 stapelia hirsuta var. vetula

Stapelia hirsuta var. vetula wants free-draining cactus and succulent mix. Use a gritty blend of cactus compost with added pumice, perlite or coarse sand. Good aeration around the shallow roots is critical, as the genus is highly prone to basal stem rot in dense, wet soil. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting stapelia hirsuta var. vetula — frequently asked questions

How often should you repot stapelia hirsuta var. vetula?

Every 2–3 years, into bone-dry mix for stapelia hirsuta var. vetula. Repot stapelia hirsuta var. vetula every 2–3 years into a snug pot of free-draining cactus and succulent 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 stapelia hirsuta var. vetula need?

When is the best time of year to repot stapelia hirsuta var. vetula?

Should you water stapelia hirsuta var. vetula after repotting?

No — not straight away. Repot stapelia hirsuta var. vetula 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 stapelia hirsuta var. vetula after repotting?

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