Geranium sanguineum 'Album' (White bloody cranesbill) care

Light

Most houseplants will scorch where geranium sanguineum 'album' thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Best in full sun, which keeps the mound compact and maximises flowering. Tolerates light dappled shade but grows lankier and blooms less generously there. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for water when the top 3-5 cm of soil is dry; established plants are drought-tolerant for geranium sanguineum 'album', 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. Needs regular water in its first season to establish. Thereafter it withstands dry spells well; avoid waterlogging, which causes crown and root rot.

Soil and pot

Geranium sanguineum 'Album' grows best in well-drained, moderately fertile soil; tolerates poor and stony ground. Thrives on free-draining loam, chalk, sand and gravel. Sharp drainage is essential; heavy, wet clay leads to rot. Suits gravel and rock gardens. 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 sanguineum 'Album' sits happiest at around 40-70% humidity and -25 to 27°C (-13 to 80°F). A hardy outdoor perennial unaffected by ambient humidity; it actually prefers dry air and good airflow, which reduce mildew. 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 sanguineum 'album' sparingly. Low feeder. A thin spring mulch or a single light application of balanced fertiliser is enough; rich feeding causes floppy, leafy growth and fewer 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 geranium sanguineum 'album' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Powdery mildew — White powdery film in hot, dry or crowded conditions. Improve spacing and airflow, water at the base, and shear back affected growth.
• Crown and root rot in wet soil — Yellowing, collapse and a soft crown follow waterlogging. Plant only in sharply drained soil and never overwater.
• Lax, sparse flowering in shade — Too little sun produces a sprawling, shy-flowering plant. Move to a sunnier, more open spot.
• Mid-summer tiredness — After the main flush the mound can look tired. Shear the whole plant back by a third to renew foliage and prompt a second flowering.

Propagation

Divide established clumps in spring or autumn, the most reliable method for keeping the white-flowered form true. Basal cuttings in spring also root well; named cultivars will not come true from seed. 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 sanguineum 'Album' is mildly toxic to pets. The ASPCA's 'Geranium' / 'Scented Geranium' toxic entries cover Pelargonium species (geraniol and linalool), not the true cranesbills. Geranium sanguineum is not individually listed by the ASPCA; true hardy geraniums are widely regarded as non-toxic to cats and dogs, but lacking a specific ASPCA non-toxic listing it is rated mildly-toxic as a precaution. Verify with a vet and discourage 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 sanguineum 'Album' deep-dive guides

Every aspect of geranium sanguineum 'album' care, each with its own calibrated guide:

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

Featured in these plant shortlists

Geranium sanguineum 'Album' qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• 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 houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• 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 sanguineum 'Album' is also commonly called White bloody cranesbill or Album bloody geranium.

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