Mature size & growth rate

How big does Moroccan Mint (Mentha spicata 'Moroccan') get?

Also called Moroccan Mint, Spearmint 'Moroccan'.

More about moroccan mint

About Moroccan Mint

Mentha spicata 'Moroccan' · also called Moroccan Mint, Spearmint 'Moroccan' · herb

Moroccan Mint is the classic tea mint of North African cuisine, prized for its exceptionally sweet, smooth spearmint flavour with little of the harsh bite of peppermint. It grows vigorously, spreading by underground runners. Ideal for mint tea, salads, and cocktails, it is best grown in a container to restrain its spreading habit.

Mature size: 45–60 cm tall; spreading indefinitely via underground runners

Watch for — Powdery mildew: White powdery coating on leaves, especially in warm, humid, poorly ventilated conditions. Improve airflow, avoid wetting foliage, and thin dense growth. Treat with a bicarbonate spray or dilute neem oil if persistent.

Indoor size vs how big it gets in the wild

Moroccan Mint stays fairly low but widens over time — it spreads into a bigger clump by offsets, runners or rhizomes rather than shooting upward. Indoors and in a pot, expect 45–60 cm tall. In the ground with no restriction it is a completely different plant — spreading indefinitely via underground runners — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

Size here is about width, not height: the plant builds an ever-wider clump or sends out plantlets and runners while staying relatively short.

Growth rate and years to mature

Moroccan Mint is a fast grower. Realistically, expect two to four years from a young plant to a room-filling specimen in good light. Its feeding profile backs this up: apply a balanced liquid fertiliser (e.g., 10-10-10) every 4 weeks during the growing season. container-grown plants benefit from monthly feeding as frequent watering leaches nutrients. avoid high-phosphorus formulas; nitrogen supports leafy growth.

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

How to keep moroccan mint smaller

You are not stuck with the maximum size. For moroccan mint specifically, these are the levers, in order of impact:

Divide the clump every year or two — splitting moroccan mint is the main way to control its spread and refresh it.
Remove runners, plantlets or offsets as they appear if you want it to stay a single tight clump.
Keep it slightly pot-bound; a snug pot naturally limits how wide the clump can get.

The keep-it-smaller method, step by step

Lift the whole plant. Slide moroccan mint out of its pot in spring when the clump has filled it.
Split the clump. Tease or cut the rootball into two or more sections, each with healthy roots and growth.
Repot one division. Put a single division back in the original pot to reset it to a smaller size; pot or give away the rest.
Remove offsets as they form. Through the year, detach new runners or pups to stop it spreading again.

How to grow moroccan mint bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for moroccan mint the accelerators are:

Give it a wider pot and let the clump fill it — width is exactly how this plant gets bigger.
Brighter light speeds up clump and offset production noticeably.
Leave plantlets and offsets attached and feed through the growing season for the fastest spread.

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

When moroccan mint outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for moroccan mint:

The clump bulging over the pot rim or splitting the pot — the cue to divide, not to find a bigger room.
A dense centre that goes bare or tired while the edges keep spreading.
Runners or offsets escaping across the shelf or into neighbouring pots.

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

Moroccan Mint size — frequently asked questions

How big does moroccan mint get?

Moroccan Mint reaches 45–60 cm tall when grown indoors, and far larger where it grows unrestricted (spreading indefinitely via underground runners). Size here is about width, not height: the plant builds an ever-wider clump or sends out plantlets and runners while staying relatively short.

Is moroccan mint slow or fast growing?

Moroccan Mint is a fast grower. Expect two to four years from a young plant to a room-filling specimen in good light. Moroccan Mint stays fairly low but widens over time — it spreads into a bigger clump by offsets, runners or rhizomes rather than shooting upward.

How long does moroccan mint take to reach full size?

Roughly two to four years from a young plant to a room-filling specimen in good light. Light, pot size and feeding move that timeline more than anything else.

How do I keep moroccan mint smaller?

Divide the clump every year or two — splitting moroccan mint is the main way to control its spread and refresh it. Remove runners, plantlets or offsets as they appear if you want it to stay a single tight clump. Keep it slightly pot-bound; a snug pot naturally limits how wide the clump can get.

How can I make moroccan mint grow bigger or faster?

Give it a wider pot and let the clump fill it — width is exactly how this plant gets bigger. Brighter light speeds up clump and offset production noticeably. Leave plantlets and offsets attached and feed through the growing season for the fastest spread.