Repotting guide

When & how to repot Gattefosse's Mint (Mentha gattefossei)

Also called Gattefosse's Mint, Moroccan Mint.

More about gattefosse's mint

About Gattefosse's Mint

Mentha gattefossei · also called Gattefosse's Mint, Moroccan Mint · herb

Gattefosse's Mint is a rare Moroccan native prized for its intensely aromatic leaves with a cool, fresh menthol scent. It thrives in full sun with consistently moist, fertile soil. Drought-sensitive but vigorous once established, it spreads by runners and suits containers or herb borders where moisture can be maintained.

Mature size: 30–50 cm tall, spreading indefinitely via underground runners

How to tell gattefosse's mint needs repotting

Repotting on a calendar is less reliable than reading the plant. For gattefosse's mint, watch for these signs:

Roots circling the bottom of the module or pot, or poking out of the drainage holes.
The seedling dries out within a day and growth has visibly stalled.
Roots are white and matted in a tight spiral when you tip the plant out.
It has outgrown its current container for the stage of the season — pot gattefosse's mint on before it becomes hard root-bound.

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 gattefosse's mint

Pot on seedlings as they grow; not a perennial repot. Gattefosse's Mintis grown for one season, so the question is really “how often to pot on” — keep moving it up before the roots circle. Spreading, rhizomatous perennial herb.

What size pot to step gattefosse's mint up to

Pot gattefosse's mint on gradually — a seedling jumped straight into a huge pot sits in cold, wet, airless soil and stalls. Step up one or two sizes at a time as the roots fill each container, finishing in a large final pot or the ground. The aim is roots that never circle and never check.

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 gattefosse's mint

Pot gattefosse's mint on through the active growing season, whenever roots fill the current container — there is no single date, just "before it becomes root-bound". Avoid potting on during a cold snap.

Step-by-step: repotting gattefosse's mint

Pot on before it is root-bound. Check gattefosse's mint regularly; move it up as soon as roots reach the edge of the cell or pot, not after they have circled.
Step up one or two sizes. Choose the next container up — not a giant one. Cold, wet, unused soil around a small root system stalls seedlings.
Knock it out gently. Support the stem, tip the pot, and ease the rootball out without breaking it. A little teasing of circled roots at the base is fine.
Pot into rich mix. Set it into fresh rich, moist, well-drained loam at the same depth (tomatoes are the exception — they can go deeper to root along the stem).
Water in and grow on. Water well, keep it in good light, and resume feeding once it is established and growing again.

Aftercare

Water gattefosse's mint in well and keep it in bright light; a freshly potted-on seedling can wilt for a day while roots settle, so do not overcompensate by drowning it. Do not fertilise for about 1 week — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for gattefosse's mint

Gattefosse's Mint wants rich, moist, well-drained loam. Prefers fertile, humus-rich soil with a pH of 6.0–7.0. Amend sandy soils with compost. Good drainage prevents crown rot, but the medium should retain moisture between waterings. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting gattefosse's mint — frequently asked questions

How often should you repot gattefosse's mint?

Pot on seedlings as they grow; not a perennial repot for gattefosse's mint. Gattefosse's Mint is a seasonal crop, so you pot it on as a growing plant rather than repotting a perennial. Step seedlings up gradually into rich, moist, well-drained loam so the roots never circle the cell, ending in a large final container. A root-bound transplant stalls and never fully recovers.

What size pot does gattefosse's mint need?

When is the best time of year to repot gattefosse's mint?

Can you put gattefosse's mint straight into a much bigger pot?

No. Even a fast-growing gattefosse's mint should only go up one pot size at a time. A vastly oversized pot holds a reservoir of wet soil the roots cannot reach, which stays cold and soggy and rots the roots — the opposite of what you wanted.

Should you fertilise gattefosse's mint after repotting?

Not immediately. Wait about 1 week after repotting gattefosse's mint. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.