Geranium phaeum 'Samobor' (Samobor dusky geranium) care

Light

Picture the indirect light an east-facing window gives mid-morning — that's the brightness geranium phaeum 'samobor' grows fastest in. Best in partial to full shade, including dry shade; the marbled leaves keep their contrast well in shade. Tolerates morning sun but avoid hot, dry full sun, which scorches the foliage. You'll know it's right when new leaves come out the same size and colour as the established ones. Smaller, paler new leaves = move closer to the window.

Watering

Aim for water when top 3-5 cm of soil is dry; keep evenly moist while establishing for geranium phaeum 'samobor', but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Prefers soil kept lightly moist for the best foliage. Established plants tolerate dry shade, but sustained drought brings early dormancy and crisped, faded leaves.

Soil and pot

Geranium phaeum 'Samobor' grows best in humus-rich, moisture-retentive but well-drained soil. Best in fertile woodland soil enriched with leaf mould or compost; tolerates clay and chalk. Mulch to retain moisture in dry, root-filled shade. 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

Geranium phaeum 'Samobor' sits happiest at around 40-70% humidity and -25 to 25°C (-13 to 77°F). Hardy woodland perennial indifferent to ambient humidity; suits the cooler, slightly moister conditions of shade. No humidity management required. 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 geranium phaeum 'samobor' sparingly. Light feeder. An annual spring mulch of compost or leaf mould is enough; excess fertiliser produces lax growth and can dull the leaf markings. 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 geranium phaeum 'samobor' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Faded or scorched leaf markings — Hot, dry sun bleaches the chocolate banding and scorches leaves. Grow in shade with steady soil moisture to keep the markings bold.
• Powdery mildew — White film in dry, still air. Cut affected foliage to the base, improve airflow, and water at soil level to renew the marbled leaves.
• Seedling variation — Self-sown seedlings often lack the distinct leaf banding. Deadhead to limit seeding and propagate true plants by division.
• Tatty foliage after flowering — Leaves tire post-bloom. Shear the clump to the ground to produce a fresh mound of well-marked new foliage.

Propagation

Divide in spring or autumn to keep the marbled-leaf form true. It self-seeds, but seedlings vary in leaf marking, so use division rather than seed for reliable 'Samobor' plants. 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

Geranium phaeum 'Samobor' is mildly toxic to pets. The ASPCA toxic 'Geranium' / 'Scented Geranium' listings refer to Pelargonium species (geraniol and linalool), not the true cranesbills. Geranium phaeum is not individually listed by the ASPCA; hardy geraniums are generally considered non-toxic to cats and dogs, but without a specific ASPCA non-toxic listing 'Samobor' is rated mildly-toxic as a precaution. Verify with a vet and keep pets from chewing the foliage. 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.

Geranium phaeum 'Samobor' deep-dive guides

Every aspect of geranium phaeum 'samobor' care, each with its own calibrated guide:

• Geranium phaeum 'Samobor' watering schedule
• Geranium phaeum 'Samobor' light requirements
• Best soil mix for geranium phaeum 'samobor'
• Geranium phaeum 'Samobor' fertilizing guide
• When to repot geranium phaeum 'samobor'
• How to propagate geranium phaeum 'samobor'
• Geranium phaeum 'Samobor' growth rate & size
• Geranium phaeum 'Samobor' cold hardiness
• Geranium phaeum 'Samobor' temperature & humidity
• Is geranium phaeum 'samobor' toxic to cats & dogs?
• Is geranium phaeum 'samobor' toxic to cats?
• Is geranium phaeum 'samobor' toxic to dogs?
• Getting geranium phaeum 'samobor' to bloom

Featured in these plant shortlists

Geranium phaeum 'Samobor' qualifies for 6 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best low-light houseplants — Houseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
• 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 houseplants for beginners — Forgiving of irregular light and watering — the houseplants least likely to die in a new plant parent’s first season.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• 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.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Geranium phaeum 'Samobor' is also commonly called Samobor dusky geranium or Marbled-leaf cranesbill.

• Peace lily care — light, water and common problems
• Bird of paradise care — light, water and common problems
• Hoya care — light, water and common problems
• All 5561 plant care guides in the Growli library