Clarke's Cranesbill (Kashmir cranesbill) care

Light

Bright but filtered. Clarke's Cranesbill burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Thrives in full sun to partial shade; dappled light under open-canopy trees suits it well. In full shade, flower production is noticeably reduced. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering clarke's cranesbill: regularly during establishment; once established, once a week in dry periods. 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. Prefers consistently moist, well-drained soil. Unlike many cranesbills it is not drought-tolerant once established; do not allow the root zone to dry out completely in summer.

Soil and pot

Clarke's Cranesbill grows best in moderately fertile, humus-rich, well-drained soil. Grow in any good garden soil that does not waterlog. Adding organic matter at planting helps moisture retention, which this Himalayan species appreciates. 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

Clarke's Cranesbill sits happiest at around Ambient (outdoor) humidity and -20 to 24°C (-4 to 75°F). Fully outdoor hardy perennial; tolerates typical UK and northern-US ambient humidity without supplemental intervention. If you keep the room above 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 clarke's cranesbill sparingly. Apply a balanced slow-release granular fertiliser around the crown in spring; established plants in reasonable soil need little additional feeding. 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 clarke's cranesbill in the Growli community. Each is annotated with the most common cause so you know where to start.

• Congested clumps losing vigour — Old clumps flower less freely after 3-4 years; lift and divide in spring, replanting the healthy outer portions and discarding the woody centre.
• Powdery mildew — Occurs in warm, dry summers especially in sheltered spots; cut the foliage hard back after flowering to promote fresh, mildew-free growth and a second flush of flowers.

Propagation

Divide rhizomatous clumps in spring; seed can be sown fresh outdoors in autumn, though cultivar seedlings may not come true. 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

Clarke's Cranesbill is pet-safe. True Geranium (cranesbill) is distinct from Pelargonium. The ASPCA identifies hardy cranesbills (Geranium species) as non-toxic to cats and dogs, in contrast to Pelargonium ('florist geranium') which is mildly toxic. 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.

Clarke's Cranesbill deep-dive guides

Every aspect of clarke's cranesbill care, each with its own calibrated guide:

• Common clarke's cranesbill problems & fixes
• Clarke's Cranesbill watering schedule
• Clarke's Cranesbill light requirements
• Best soil mix for clarke's cranesbill
• Clarke's Cranesbill fertilizing guide
• When to repot clarke's cranesbill
• How to propagate clarke's cranesbill
• How to prune clarke's cranesbill
• What's eating my clarke's cranesbill?
• Clarke's Cranesbill growth rate & size
• Clarke's Cranesbill cold hardiness
• Clarke's Cranesbill temperature & humidity
• Is clarke's cranesbill toxic to cats & dogs?
• Is clarke's cranesbill toxic to cats?
• Is clarke's cranesbill toxic to dogs?
• All 78 Geranium varieties
• Getting clarke's cranesbill to bloom

Featured in these plant shortlists

Clarke's Cranesbill qualifies for 10 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best pet-safe houseplants — Houseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Best pet-safe low-maintenance plants — Non-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
• Best pet-safe flowering plants — Flowering houseplants the ASPCA lists as non-toxic to cats and dogs — colour and blooms in a pet home, without the worry.
• Best pet-safe plants for bright light — Non-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Best cat-safe plants — Houseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
• Best dog-safe plants — Houseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Clarke's Cranesbill is also commonly called Clarke's cranesbill or Kashmir cranesbill.

• Wallich's Cranesbill care — light, water and common problems
• Pencilled Cranesbill care — light, water and common problems
• Druce's Cranesbill care — light, water and common problems
• All 10153 plant care guides in the Growli library