Growli

Plant care

Nerved Catmint (Kashmir Catmint) care

Nepeta nervosa

Also called Nerved Catmint, Kashmir Catmint.

RHS H6USDA 4–8Pet-safeIndoor 30–45 cm tall

Watering rhythm

7-10days

Every 7–10 days in the growing season; much less in winter

Light

Direct sun (at least 4-6 hours)

Soil

Gritty, well-drained loam or sandy soil; pH 6.0–7.5

Humidity

30–55%

Temp

−20°C to 35°C

Pet safety

Pet-safe

Mature size

30–45 cm tall

Care at a glance

Light

Aim for at least 4-6 hours of direct sun on the leaves. Full sun is essential for best performance. This Himalayan species is adapted to high-altitude, open, sunny conditions. Shade causes stem elongation and sparse flowering. If your only bright window faces south, that's perfect for nerved catmint — same window any aroid would fry on.

Watering

Watering nerved catmint: every 7–10 days in the growing season; much less in winter. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Moderately drought-tolerant once established. Prefers soil that dries between waterings. Excellent drainage is critical; waterlogging quickly causes root rot, especially in winter.

Soil and pot

Nerved Catmint grows best in gritty, well-drained loam or sandy soil; ph 6.0–7.5. Thrives in lean, sharply drained soils reflecting its high-altitude origin. Adding extra horticultural grit to borders or using a raised bed is recommended in heavier soils. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Nerved Catmint sits happiest at around 30–55% humidity and −20°C to 35°C (−4°F to 95°F). Prefers low to moderate humidity. High humidity combined with poor drainage is the fastest route to plant failure. Suitable for dry, continental, and Mediterranean garden conditions. If you keep the room above −20°C to 35°C year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed nerved catmint sparingly. Minimal feeding required. A very light application of balanced fertiliser in early spring is adequate. Rich soil causes lax, uncharacteristic growth. Grows best on lean, mineral substrates. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on nerved catmint in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Crown rot in wet wintersThe main vulnerability of this species. Ensure very sharp drainage and avoid mulching over the crown. In cold, wet climates, grow in a raised bed with grit incorporated into the soil.
  • Short flowering season without deadheadingRemoving spent flower spikes promptly encourages further flushes. Without deadheading, flowering ends quickly and energy goes to seed production.
  • Leggy growth in shadeEven a few hours of shade causes markedly lax, sprawling stems. Always site in full sun. Compact, dense growth is only achieved with maximum light exposure.

Propagation

Divide clumps in spring. Take softwood cuttings in early summer. Sow seeds in spring; stratify at 4°C for 4 weeks before sowing at the surface at 18–20°C for improved germination rates. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Nerved Catmint is pet-safe. Nepeta nervosa is not individually listed by ASPCA but is a member of the non-toxic Nepeta genus with no identified toxic compounds. Based on genus-level ASPCA guidance, it is considered non-toxic to dogs and cats. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Nerved Catmint care — frequently asked questions

What is the common name for Nepeta nervosa?

Nepeta nervosa is most commonly called Nerved Catmint, but it is also known as Nerved Catmint, Kashmir Catmint. The names refer to the same species, so care instructions for Nerved Catmint apply identically to anything sold as Kashmir Catmint.

How much light does nerved catmint need?

Nerved Catmint grows best in direct sun (at least 4-6 hours). Full sun is essential for best performance. This Himalayan species is adapted to high-altitude, open, sunny conditions. Shade causes stem elongation and sparse flowering.

How often should I water nerved catmint?

Water nerved catmint every 7–10 days in the growing season; much less in winter. Moderately drought-tolerant once established. Prefers soil that dries between waterings. Excellent drainage is critical; waterlogging quickly causes root rot, especially in winter. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is nerved catmint toxic to cats and dogs?

Nerved Catmint is pet-safe. Nepeta nervosa is not individually listed by ASPCA but is a member of the non-toxic Nepeta genus with no identified toxic compounds. Based on genus-level ASPCA guidance, it is considered non-toxic to dogs and cats.

What USDA hardiness zone does nerved catmint grow in?

Nerved Catmint is rated for USDA zone 4–8 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Nerved Catmint deep-dive guides

Every aspect of nerved catmint care, each with its own calibrated guide:

Featured in these plant shortlists

Nerved Catmint qualifies for 9 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Nerved Catmint is also commonly called Nerved Catmint or Kashmir Catmint.