Mature size & growth rate

How big does Smelly Dorstenia (Dorstenia foetida) get?

Also called Smelly Dorstenia, Shield Flower, Grendelion.

More about smelly dorstenia

About Smelly Dorstenia

Dorstenia foetida · also called Smelly Dorstenia, Shield Flower · houseplant

Dorstenia foetida is a compact caudiciform succulent native to the Arabian Peninsula and East Africa, with a thickened mahogany-to-dark-green stem reaching 40 cm, scarred with distinctive leaf and inflorescence marks. Its flat, star-shaped flower heads emit a faint unpleasant odour to attract flies. Grow in a warm, bright spot with moderate watering in summer and reduced water in winter.

Mature size: 30–40 cm tall; stem to 6 cm in diameter

Watch for — Etiolation in low light: Insufficient light causes the stem to elongate rapidly and lean toward light sources, and the leaf-scar pattern becomes loose and unattractive. Move to a brighter location or add a grow light immediately — etiolated growth is permanent and cannot be reversed.

Indoor size vs how big it gets in the wild

Smelly Dorstenia 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 30–40 cm tall. In the ground with no restriction it is a completely different plant — stem to 6 cm in diameter — 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

Smelly Dorstenia 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: apply a high-potassium, high-phosphorus fertiliser (such as tomato feed diluted to half strength) once every 3–4 weeks during spring through early autumn. suspend feeding entirely in winter. avoid high-nitrogen formulas, which produce lax growth.

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

How to keep smelly dorstenia smaller

Good news — smelly dorstenia barely needs managing. If you do want to keep it tidy:

Divide or remove offsets when the pot looks crowded to keep smelly dorstenia 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 smelly dorstenia bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for smelly dorstenia 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 smelly dorstenia light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When smelly dorstenia outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for smelly dorstenia:

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, smelly dorstenia 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 smelly dorstenia repotting guide. If you want more of this plant instead of a bigger one, the smelly dorstenia propagation guide turns prunings into new plants.

Smelly Dorstenia size — frequently asked questions

How big does smelly dorstenia get?

Smelly Dorstenia reaches 30–40 cm tall when grown indoors, and far larger where it grows unrestricted (stem to 6 cm in diameter). It grows mostly by adding leaves, offsets or a slightly wider rosette rather than gaining height — the footprint barely changes year to year.

Is smelly dorstenia slow or fast growing?

Smelly Dorstenia is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Smelly Dorstenia 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 smelly dorstenia 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 smelly dorstenia smaller?

Divide or remove offsets when the pot looks crowded to keep smelly dorstenia 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 smelly dorstenia 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.