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Perennial · Lamiaceae family

Catmint

Nepeta ×faassenii

Full sun 0.45–0.6 m × 0.3–0.9 m Flowers May–September to −26 °C
Flower colours Click a colour

In short a 10-second read

SunFull sun
Size0.45–0.6 m
spacing 40 cm
FlowersMay–September
PlantingMarch–May, September–November
WinterNo winter protection

Where to plant and how much to water

Sun, soil and water.

It grows best in full sun, in dry to average soil.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Soil

tolerates any pH
acidicneutralalkaline
dry to averagesandyloamy

Watering

drought tolerant once establishedless when it rains

Frost

−26 °C
no winter protectiondies back in winter, regrows in spring

How much space it takes

Mature size.

The mature plant next to a person (175 cm).

50 cm1 m1.5 m0.45–0.6 mspread 0.3–0.9 m
0.45–0.6 m× spread 0.3–0.9 m

Plant 40 cm apart.

Reaches maturity in about 2–5 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

Through the year.

Months for Central Europe. The line shows the current month.

The year at a glance

Flowers: JanuaryFlowers: FebruaryFlowers: MarchFlowers: AprilFlowers: MayFlowers: JuneFlowers: JulyFlowers: AugustFlowers: SeptemberFlowers: OctoberFlowers: NovemberFlowers: DecemberPlanting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberFeeding: JanuaryFeeding: FebruaryFeeding: MarchFeeding: AprilFeeding: MayFeeding: JuneFeeding: JulyFeeding: AugustFeeding: SeptemberFeeding: OctoberFeeding: NovemberFeeding: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
FlowersPlantingFeeding
Now, in October: a good time for planting (container plant).
JanFebMarAprMayJunJulAugSepOctNovDec

Flowers

JanFebMarAprMayJunJulAugSepOctNovDec

May–September · blue, purple or white

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–May, September–November

Feeding

JanFebMarAprMayJunJulAugSepOctNovDec

March–May

Feeding

Nutrition.

Light
balanced fertilisercompost or mulch
JanFebMarAprMayJunJulAugSepOctNovDec

Pests and diseases

Common problems and what to do.

The most common problems in Central Europe. Protection is listed from the gentlest option.

What you will see

Pale dots on leaves, tiny hopping insects on the undersides of leaves.

How to protect

  1. Prevention
    • Regularly check the undersides of leaves.
    • Encourage natural enemies.
  2. By hand when foundA strong jet of water washes off some of the insects.
  3. Gentle spray in a heavy infestationPotassium soap or plant oil according to the label.
Leafhopperspest

What you will see

Pale dots on leaves, tiny hopping insects on the undersides of leaves.

How to protect

  1. Prevention
    • Regularly check the undersides of leaves.
    • Encourage natural enemies.
  2. By hand when foundA strong jet of water washes off some of the insects.
  3. Gentle spray in a heavy infestationPotassium soap or plant oil according to the label.
More about this problem

What you will see

White powdery coating on leaves and stems; leaves curl and dry out.

When to look

From spring onwards

How to protect

  1. Prevention
    • Sunny, airy position; not in a still spot against a wall.
    • Do not overdo nitrogen (lush young leaves are more susceptible).
    • Water at the roots, not on the leaves.
  2. By hand as soon as the first symptoms appearQuickly cut out affected shoots and burn them or take them away (not to the compost).
  3. Gentle spray at the start of infectionSulphur or fatty acids (potassium soap) according to the label.
  4. Chemical — only when nothing else helps only in a heavy attackA product authorised in your country against powdery mildew.
Powdery mildewsdisease · from spring onwards

What you will see

White powdery coating on leaves and stems; leaves curl and dry out.

When to look

From spring onwards

How to protect

  1. Prevention
    • Sunny, airy position; not in a still spot against a wall.
    • Do not overdo nitrogen (lush young leaves are more susceptible).
    • Water at the roots, not on the leaves.
  2. By hand as soon as the first symptoms appearQuickly cut out affected shoots and burn them or take them away (not to the compost).
  3. Gentle spray at the start of infectionSulphur or fatty acids (potassium soap) according to the label.
  4. Chemical — only when nothing else helps only in a heavy attackA product authorised in your country against powdery mildew.
More about this problem
Sources (4)

Frequently asked

Quick answers.

When does catmint flower?

In May–September; the flowers are blue, purple or white.

Does catmint tolerate shade?

No, it needs full sun.

How much space does catmint need?

At maturity 0.3–0.9 m wide and 0.45–0.6 m tall; recommended spacing 40 cm.

Leafhoppers — what can you do?

Regularly check the undersides of leaves. A strong jet of water washes off some of the insects.

Powdery mildews — what can you do?

Sunny, airy position; not in a still spot against a wall. Quickly cut out affected shoots and burn them or take them away (not to the compost).

Sources (15) Checked 14 October 2026

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