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Plant care

Dalmatian Cranesbill (Dalmatian Geranium) care

Geranium dalmaticum

Also called Dalmatian Cranesbill, Dalmatian Geranium.

RHS H6USDA 4-8Pet-safeIndoor 10–15 cm tall and 30–45 cm wide.

Watering rhythm

7-10days

Every 7–10 days during the growing season; minimal in winter

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Light

Direct sun (at least 4-6 hours)

Soil

Well-drained, neutral to alkaline, gritty or stony soil

Humidity

Low to moderate ambient outdoor humidity (30–60%)

Temp

-20 to 25°C

Pet safety

Pet-safe

Mature size

10–15 cm tall and 30–45 cm wide.

Care at a glance

Light

Aim for at least 4-6 hours of direct sun on the leaves. Best in full sun, which sharpens the pink flower colour and intensifies autumn foliage tints; tolerates light partial shade but grows less vigorously. If your only bright window faces south, that's perfect for dalmatian cranesbill — same window any aroid would fry on.

Watering

Watering dalmatian cranesbill: every 7–10 days during the growing season; minimal 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. Water moderately and allow the soil to partially dry between waterings; native to rocky limestone terrain, this species is naturally drought-tolerant once established.

Soil and pot

Dalmatian Cranesbill grows best in well-drained, neutral to alkaline, gritty or stony soil. Thrives in the kind of sharply draining alkaline conditions found in rock garden pockets and wall crevices; add grit liberally to any heavy border soil before planting. 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

Dalmatian Cranesbill sits happiest at around Low to moderate ambient outdoor humidity (30–60%) humidity and -20 to 25°C (-4 to 77°F). Tolerates typical temperate garden humidity; good air circulation around the low mats deters fungal issues on the evergreen foliage during wet winters. 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 dalmatian cranesbill sparingly. Requires very little feeding; a light application of balanced granular fertiliser in early spring is sufficient. Avoid high-nitrogen feeds that encourage soft leafy growth at the expense of compact habit and flowers. 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 dalmatian cranesbill in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Root rot in waterlogged soil — The plant's native limestone habitat means it is intolerant of wet, poorly drained positions; ensure excellent drainage year-round, particularly in winter — raised alpine beds and wall top plantings are ideal.
  • Powdery mildew on evergreen foliage — Persisting leaves in warm, damp autumns can develop a white powdery coating; remove the oldest leaves and improve air movement around the mat by thinning dense growth every few years.

Propagation

Divide mats in early spring or take short stem cuttings in late spring to early summer. Species can also be raised from seed sown under glass in spring after a period of cold stratification. 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

Dalmatian Cranesbill is pet-safe. True Geranium (cranesbill) species are non-toxic to cats and dogs per ASPCA guidance; the RHS and ASPCA both distinguish this genus from the mildly toxic Pelargonium. 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.

Dalmatian Cranesbill care — frequently asked questions

What is the common name for Geranium dalmaticum?

Geranium dalmaticum is most commonly called Dalmatian Cranesbill, but it is also known as Dalmatian Cranesbill, Dalmatian Geranium. The names refer to the same species, so care instructions for Dalmatian Cranesbill apply identically to anything sold as Dalmatian Geranium.

How much light does dalmatian cranesbill need?

Dalmatian Cranesbill grows best in direct sun (at least 4-6 hours). Best in full sun, which sharpens the pink flower colour and intensifies autumn foliage tints; tolerates light partial shade but grows less vigorously.

How often should I water dalmatian cranesbill?

Water dalmatian cranesbill every 7–10 days during the growing season; minimal in winter. Water moderately and allow the soil to partially dry between waterings; native to rocky limestone terrain, this species is naturally drought-tolerant once established. 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 dalmatian cranesbill toxic to cats and dogs?

Dalmatian Cranesbill is pet-safe. True Geranium (cranesbill) species are non-toxic to cats and dogs per ASPCA guidance; the RHS and ASPCA both distinguish this genus from the mildly toxic Pelargonium.

What USDA hardiness zone does dalmatian cranesbill grow in?

Dalmatian Cranesbill 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.

Dalmatian Cranesbill deep-dive guides

Every aspect of dalmatian cranesbill care, each with its own calibrated guide:

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

Related guides

Dalmatian Cranesbill is also commonly called Dalmatian Cranesbill or Dalmatian Geranium.