Alchemilla mollis (Lady's mantle) care

Light

Alchemilla mollis 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. Very adaptable, though some shade in hot, dry climates keeps the foliage fresh and prevents scorch. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water alchemilla mollis water in dry spells; established plants are drought-tolerant and need watering only occasionally. 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 moist, well-drained soil but tolerates a wide range once established, including periods of drought. Avoid permanently waterlogged ground.

Soil and pot

Alchemilla mollis grows best in any moderately fertile, well-drained soil. Unfussy and tolerant of most soils, including clay and poor ground, across a broad pH range. Best in soil that retains some moisture yet drains freely. 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

Alchemilla mollis sits happiest at around Ambient outdoor humidity and -29 to 27°C (-20 to 81°F). An undemanding outdoor perennial with no special humidity needs; thrives in ordinary garden conditions in both dry and damp situations. 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 alchemilla mollis sparingly. Rarely needs feeding in reasonable soil; a spring mulch of compost is usually sufficient. A light balanced feed in spring on poor soils encourages lush foliage. 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 alchemilla mollis in the Growli community. Each is annotated with the most common cause so you know where to start.

• Prolific self-seeding — It seeds around vigorously and can become weedy; cut flower stems back right after flowering to prevent unwanted seedlings.
• Tired, tatty foliage after flowering — Leaves can look scorched or shabby by midsummer; shear the whole plant to the ground and it flushes back with fresh growth.
• Leaf scorch in hot dry sun — Foliage edges brown in baking, dry positions; site in some shade or keep soil moisture up in heat.
• Crown congestion over time — Old clumps can become woody and bare in the centre; lift and divide every few years to rejuvenate.

Propagation

Divide established clumps in spring or autumn, or allow self-sown seedlings to be lifted and transplanted; it also grows readily from seed sown in spring. 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

Alchemilla mollis is mildly toxic to pets. Alchemilla mollis is not individually listed by the ASPCA, so it cannot be confirmed as pet-safe. Several horticultural sources describe lady's mantle as non-toxic, but without ASPCA grounding treat it with caution; ingesting plant material may cause mild gastrointestinal upset, and verify with a vet if a pet eats it. 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.

Alchemilla mollis deep-dive guides

Every aspect of alchemilla mollis care, each with its own calibrated guide:

• Alchemilla mollis watering schedule
• Alchemilla mollis light requirements
• Best soil mix for alchemilla mollis
• Alchemilla mollis fertilizing guide
• When to repot alchemilla mollis
• How to propagate alchemilla mollis
• Alchemilla mollis growth rate & size
• Alchemilla mollis cold hardiness
• Alchemilla mollis temperature & humidity
• Is alchemilla mollis toxic to cats & dogs?
• Is alchemilla mollis toxic to cats?
• Is alchemilla mollis toxic to dogs?
• Getting alchemilla mollis to bloom

Featured in these plant shortlists

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

• 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 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

Alchemilla mollis is also commonly called Lady's mantle or Soft lady's mantle.

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