Pelargonium 'Mrs Pollock' (Mrs Pollock geranium) care

Light

Aim for at least 4-6 hours of direct sun on the leaves. Full, strong sun is essential to bring out the bronze, gold and cream leaf zones. In shade the colours turn flat and muddy green. Indoors it needs the brightest possible windowsill. If your only bright window faces south, that's perfect for pelargonium 'mrs pollock' — same window any aroid would fry on.

Watering

Watering pelargonium 'mrs pollock': when the top 2-3 cm of compost is dry, roughly every 5-10 days in growth. 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 thoroughly, then let the surface dry before the next watering. Tricolour types are a little fussier than plain zonals, so avoid both drying out completely and standing in water. Reduce sharply in winter.

Soil and pot

Pelargonium 'Mrs Pollock' grows best in free-draining loam-based or peat-free multipurpose compost. Use an open, gritty mix (John Innes No. 2 plus 20-30% grit or perlite). Sharp drainage is vital, as fancy-leaf pelargoniums sulk and rot in heavy, wet compost. 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

Pelargonium 'Mrs Pollock' sits happiest at around 30-50% humidity and 10-24°C (50-75°F). Prefers dry to average air with good airflow. Damp, stagnant conditions encourage rust and botrytis; do not mist. If you keep the room above 10 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 pelargonium 'mrs pollock' sparingly. Feed fortnightly through the growing season with a balanced or slightly high-potash liquid feed. Tricolour zonals grow slowly, so avoid heavy nitrogen, which dulls leaf colour and softens growth. Stop feeding in winter. 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 pelargonium 'mrs pollock' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Poor leaf colour — Too little sun or excess nitrogen washes out the cream, gold and bronze zones. Move to full sun and use a high-potash, low-nitrogen feed.
• Slow, weak growth — Tricolour zonals are naturally slow; cold, wet roots stall them further. Keep warm, bright and on the dry side, and pot on only when truly rootbound.
• Pelargonium rust — Brown pustules under the leaves spread in humid air. Remove affected foliage and improve ventilation.
• Root or stem rot — Heavy, soggy compost causes blackleg and basal rot. Use a very free-draining mix and let it dry between waterings.

Propagation

Take 8-10 cm stem cuttings in spring or late summer. Slow-rooting compared with plain zonals, so use gritty compost, keep warm and barely moist, and be patient; rooting takes 3-5 weeks. No hormone needed. 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

Pelargonium 'Mrs Pollock' is toxic to pets. The ASPCA lists Geranium (Pelargonium) as toxic to cats and dogs; geraniol and linalool are the toxic principles. Ingestion may cause vomiting, anorexia, depression and dermatitis. Keep this plant away from pets. 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.

Pelargonium 'Mrs Pollock' deep-dive guides

Every aspect of pelargonium 'mrs pollock' care, each with its own calibrated guide:

• Pelargonium 'Mrs Pollock' watering schedule
• Pelargonium 'Mrs Pollock' light requirements
• Best soil mix for pelargonium 'mrs pollock'
• Pelargonium 'Mrs Pollock' fertilizing guide
• When to repot pelargonium 'mrs pollock'
• How to propagate pelargonium 'mrs pollock'
• Pelargonium 'Mrs Pollock' growth rate & size
• Pelargonium 'Mrs Pollock' cold hardiness
• Pelargonium 'Mrs Pollock' temperature & humidity
• Is pelargonium 'mrs pollock' toxic to cats & dogs?
• Is pelargonium 'mrs pollock' toxic to cats?
• Is pelargonium 'mrs pollock' toxic to dogs?
• Getting pelargonium 'mrs pollock' to bloom

Featured in these plant shortlists

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

• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
• Best small & tabletop houseplants — Compact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
• 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.
• Best fast-growing houseplants — Houseplants documented as fast or vigorous growers — quick to fill a pot, cover a pole or trail down a shelf.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Pelargonium 'Mrs Pollock' is also commonly called Mrs Pollock geranium or Tricolor zonal pelargonium.

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