Plant care
Wallich's Cranesbill (Wallich geranium) care
Geranium wallichianum
Also called Wallich's cranesbill, Wallich geranium.
Watering rhythm
Bright indirect light (just back from a sunny window)
Once or twice weekly during dry spells once established
Light
Bright indirect light (just back from a sunny window)
Soil
Moderately fertile, free-draining garden soil
Humidity
Ambient (outdoor)
Temp
-20 to 25°C
Pet safety
Pet-safe
Mature size
20-30 cm tall
Care at a glance
Light
Wallich's Cranesbill is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Full sun to partial shade; afternoon dappled shade in hot summers helps maintain flower colour, particularly the blue tones of 'Buxton's Variety'. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.
Watering
Water wallich's cranesbill once or twice weekly during dry spells once established. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Prefers moderately moist, well-drained soil. Avoid prolonged drought as this reduces flowering and causes the foliage to desiccate; do not allow it to sit in standing water.
Soil and pot
Wallich's Cranesbill grows best in moderately fertile, free-draining garden soil. Grows well in most average soils enriched with organic matter. Very heavy clay should be amended with grit for improved drainage. 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
Wallich's Cranesbill sits happiest at around Ambient (outdoor) humidity and -20 to 25°C (-4 to 77°F). Fully outdoor hardy perennial suited to temperate garden conditions; no supplemental humidity 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 wallich's cranesbill sparingly. A single application of balanced slow-release fertiliser in spring is sufficient; over-feeding promotes lush foliage at the expense of 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 wallich's cranesbill in the Growli community. Each is annotated with the most common cause so you know where to start.
- Powdery mildew in late summer — Common when plants are dry at the root in warm, still conditions; ensure adequate moisture and cut back affected stems to encourage clean regrowth.
- Self-seeding too freely — Some forms self-seed prolifically; deadhead spent flowers if unwanted seedlings are a concern, noting that named cultivars such as 'Buxton's Variety' may not come fully true from seed.
Propagation
Divide clumps in early spring before growth emerges; root basal cuttings in gritty compost in spring with bottom heat. Seed sown fresh outdoors germinates well but cultivar characteristics may vary. 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
Wallich's Cranesbill is pet-safe. True Geranium (cranesbill) species, including G. wallichianum, are considered non-toxic to cats and dogs by the ASPCA. This is distinct from Pelargonium ('geranium' in common trade), 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.
Wallich's Cranesbill care — frequently asked questions
What is the common name for Geranium wallichianum?
Geranium wallichianum is most commonly called Wallich's Cranesbill, but it is also known as Wallich's cranesbill, Wallich geranium. The names refer to the same species, so care instructions for Wallich's Cranesbill apply identically to anything sold as Wallich geranium.
How much light does wallich's cranesbill need?
Wallich's Cranesbill grows best in bright indirect light (just back from a sunny window). Full sun to partial shade; afternoon dappled shade in hot summers helps maintain flower colour, particularly the blue tones of 'Buxton's Variety'.
How often should I water wallich's cranesbill?
Water wallich's cranesbill once or twice weekly during dry spells once established. Prefers moderately moist, well-drained soil. Avoid prolonged drought as this reduces flowering and causes the foliage to desiccate; do not allow it to sit in standing water. 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 wallich's cranesbill toxic to cats and dogs?
Wallich's Cranesbill is pet-safe. True Geranium (cranesbill) species, including G. wallichianum, are considered non-toxic to cats and dogs by the ASPCA. This is distinct from Pelargonium ('geranium' in common trade), which is mildly toxic.
What USDA hardiness zone does wallich's cranesbill grow in?
Wallich's Cranesbill is rated for USDA zone 5-9 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Wallich's Cranesbill deep-dive guides
Every aspect of wallich's cranesbill care, each with its own calibrated guide:
- Common wallich's cranesbill problems & fixes
- Wallich's Cranesbill watering schedule
- Wallich's Cranesbill light requirements
- Best soil mix for wallich's cranesbill
- Wallich's Cranesbill fertilizing guide
- When to repot wallich's cranesbill
- How to propagate wallich's cranesbill
- How to prune wallich's cranesbill
- What's eating my wallich's cranesbill?
- Wallich's Cranesbill growth rate & size
- Wallich's Cranesbill cold hardiness
- Wallich's Cranesbill temperature & humidity
- Is wallich's cranesbill toxic to cats & dogs?
- Is wallich's cranesbill toxic to cats?
- Is wallich's cranesbill toxic to dogs?
- All 78 Geranium varieties
- Getting wallich's cranesbill to bloom
Featured in these plant shortlists
Wallich's Cranesbill qualifies for 12 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 trailing & climbing houseplants — Vining and trailing houseplants for shelves, hanging pots, and moss poles — selected by growth habit.
- Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
- Best pet-safe trailing & hanging plants — Trailing and climbing plants the ASPCA lists as non-toxic to cats and dogs — safe for shelves and hanging pots in a pet home.
- 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
Wallich's Cranesbill is also commonly called Wallich's cranesbill or Wallich geranium.