How often should you water mint? Keep it moist

Mint is one of the thirstier kitchen herbs and, unlike Mediterranean herbs, it dislikes drying out. As a quick answer: water mint when the soil surface starts to dry, often every 1 to 3 days in a pot and more in heat, keeping it evenly moist but never waterlogged. This page is a crop-specific companion to the main guide on how often to water potted herbs.

Why mint wants steady moisture

Mint naturally grows near streams and damp ground, so it is built for moist conditions. In a pot it grows fast and uses water quickly, and it sulks or goes crispy when the soil runs dry. This puts it on the opposite end of the watering scale from thyme and rosemary.

How to tell when to water

• Watch the surface. Water when the top of the soil begins to dry, before it dries out fully.
• Lift the pot as a backup check; a light pot is drying.
• Water thoroughly, letting excess drain so the roots are moist, not sitting in water.

A roomy pot that does not dry out instantly makes this easier, which is part of why mint suits its own larger container, as covered in mint pot size.

Moist, but still drained

Liking moisture is not the same as liking a swamp. Mint still needs drainage holes so the roots are not permanently wet. If you also grow basil, its moisture needs are similar, so see how often to water basil.

Why mint dries out faster than other herbs

Mint spreads by shallow runners (stolons) that colonise the top few centimetres of the pot, exactly the layer that dries first. Combined with its large, thin leaves that transpire heavily, that root habit is why a mint pot can feel heavy in the morning and bone dry by evening in summer. It is also why mint in a small or shallow pot becomes a twice-a-day chore: there is very little soil reservoir below the root mat. A wider, deeper pot (or a self-watering one) is often the real fix for “my mint keeps wilting,” not more frequent watering.

Reading mint: wilting vs yellowing

Mint tells you what is wrong by how it fails:

• Whole plant flops, soil dry, recovers fast after watering → simple underwatering. Mint wilts dramatically but usually bounces back within an hour or two of a deep soak; a few of these episodes are survivable, but repeated ones weaken it.
• Lower leaves yellow while soil stays wet, stems limp → overwatering or poor drainage. Ease off and check the pot drains.
• Crispy brown leaf edges in a well-watered pot → usually heat or salt build-up from hard water or fertiliser, not thirst. Flush the pot occasionally with plenty of plain water.

Adjust for the season

Mint is a perennial that slows down in autumn and dies back in winter. As growth stops, its water use drops sharply, so a winter mint pot needs far less water than the same pot in July, even indoors. Overwatering a dormant mint is a common way to rot it. Scale watering to how actively it is growing, not to a fixed routine.

Going away?

Because mint dries out faster than Mediterranean herbs, move it out of direct heat before a trip and use one of the setups in how to water potted herbs while on vacation.