Mature size & growth rate

How big does Burchard's Caralluma (Caralluma burchardii) get?

Also called Burchard's Caralluma, Canary Island Caralluma.

More about burchard's caralluma

About Burchard's Caralluma

Caralluma burchardii · also called Burchard's Caralluma, Canary Island Caralluma · houseplant

Caralluma burchardii is a rare succulent stapeliad native to the Canary Islands and North Africa, forming upright four-angled grey-green stems with small teeth along the ridges. Clusters of small, star-shaped, maroon-purple flowers with a carrion scent appear in summer. A striking collector's plant for warm, bright positions.

Mature size: 10–20 cm tall; clumps to 20–30 cm wide

Indoor size vs how big it gets in the wild

Burchard's Caralluma is a naturally small plant — it stays shelf- and desk-sized for its whole life, so it never becomes a space problem. Indoors and in a pot, expect 10–20 cm tall. In the ground with no restriction it is a completely different plant — clumps to 20–30 cm wide — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

It grows mostly by adding leaves, offsets or a slightly wider rosette rather than gaining height — the footprint barely changes year to year.

Growth rate and years to mature

Burchard's Caralluma is a moderate grower. Realistically, expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Its feeding profile backs this up: feed once in spring with a very dilute, low-nitrogen cactus fertiliser (e.g. 5-10-10). over-fertilising with nitrogen produces lush but rot-susceptible growth.

Want this turned into the right next pot at the right moment? The pot size calculator and the burchard's caralluma repotting guide cover when and how much to size up — pot size is one of the biggest levers on how fast burchard's caralluma grows.

How to keep burchard's caralluma smaller

Good news — burchard's caralluma barely needs managing. If you do want to keep it tidy:

Divide or remove offsets when the pot looks crowded to keep burchard's caralluma to a single tidy clump.
Keeping it slightly pot-bound and easing back on feed naturally caps the size.
Pinch or remove the oldest, tiredest leaves so energy goes into a compact, fresh-looking plant.

How to grow burchard's caralluma bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for burchard's caralluma the accelerators are:

It is already in good light; consistent warmth and a balanced feed in spring and summer are the only levers.
A small step up in pot size every couple of years gives the roots a little more room without triggering a size jump.
Feed lightly through the growing season; this plant simply will not race however hard you push it.

Light is almost always the ceiling. The burchard's caralluma light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When burchard's caralluma outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for burchard's caralluma:

Roots circling the bottom or pushing out of the drainage hole — it wants a pot one size up, not a bigger room.
Offsets crowding the surface so the original plant looks squashed.
Honestly, burchard's caralluma rarely outgrows a room — outgrowing its pot is the only realistic limit.

If it is the pot rather than the room, it is a repotting job, not a goodbye — see the burchard's caralluma repotting guide. If you want more of this plant instead of a bigger one, the burchard's caralluma propagation guide turns prunings into new plants.

Burchard's Caralluma size — frequently asked questions

How big does burchard's caralluma get?

Burchard's Caralluma reaches 10–20 cm tall when grown indoors, and far larger where it grows unrestricted (clumps to 20–30 cm wide). It grows mostly by adding leaves, offsets or a slightly wider rosette rather than gaining height — the footprint barely changes year to year.

Is burchard's caralluma slow or fast growing?

Burchard's Caralluma is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Burchard's Caralluma is a naturally small plant — it stays shelf- and desk-sized for its whole life, so it never becomes a space problem.

How long does burchard's caralluma take to reach full size?

Roughly three to six years to reach mature indoor size, gaining a steady amount each growing season. Light, pot size and feeding move that timeline more than anything else.

How do I keep burchard's caralluma smaller?

Divide or remove offsets when the pot looks crowded to keep burchard's caralluma to a single tidy clump. Keeping it slightly pot-bound and easing back on feed naturally caps the size. Pinch or remove the oldest, tiredest leaves so energy goes into a compact, fresh-looking plant.

How can I make burchard's caralluma grow bigger or faster?

It is already in good light; consistent warmth and a balanced feed in spring and summer are the only levers. A small step up in pot size every couple of years gives the roots a little more room without triggering a size jump. Feed lightly through the growing season; this plant simply will not race however hard you push it.