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Plant care

Grecian Windflower (Winter windflower) care

Anemone blanda

Also called Grecian windflower, Winter windflower, Spring windflower.

RHS H6USDA 4-8Toxic to petsIndoor 10–15 cm tall and 10–15 cm wide per tuber

Watering rhythm

Bright indirect light (just back from a sunny window)

Moderate in spring, dry during summer dormancy

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Light

Bright indirect light (just back from a sunny window)

Soil

Well-drained, humus-rich chalk, loam, or sand

Humidity

Low to moderate

Temp

-20°C to 25°C

Pet safety

Toxic to pets

Mature size

10–15 cm tall and 10–15 cm wide per tuber

Care at a glance

Light

Grecian Windflower 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. Grows well in full sun or partial shade; in the garden it thrives under the canopy of deciduous trees, receiving sun in early spring before the tree canopy closes. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water grecian windflower moderate in spring, dry during summer dormancy. 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. Water regularly during the growing and flowering period in spring; allow the soil to dry out almost completely once the foliage yellows and dies back in early summer.

Soil and pot

Grecian Windflower grows best in well-drained, humus-rich chalk, loam, or sand. Plant tubers 5–8 cm deep in loose, free-draining soil enriched with leafmould or garden compost; soak dry tubers in water for a few hours before planting to aid rehydration. 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

Grecian Windflower sits happiest at around Low to moderate humidity and -20°C to 25°C (-4°F to 77°F). No particular humidity requirements; good air circulation around foliage during the growing season helps reduce the risk of powdery mildew. 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 grecian windflower sparingly. Apply a low-nitrogen, balanced fertiliser or top-dress with leafmould in autumn to support tuber development; avoid high-nitrogen feeds that promote excessive leaf 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 grecian windflower in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Leaf and bud eelworms (Aphelenchoides) — Nematode infestation causes brown patches between leaf veins; destroy affected plants and do not replant anemones in the same soil for several years — there is no chemical cure available to gardeners.
  • Powdery mildew — Can appear on foliage in dry conditions; improve air circulation and water at the base rather than overhead; affected plants rarely suffer serious long-term damage.

Propagation

Divide clumps of dormant tubers in summer, replanting immediately at the same depth; can also be grown from fresh seed sown in autumn in a cold frame, though seedlings take 2–3 years to flower. 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

Grecian Windflower is toxic to pets. Anemone blanda, like all members of the Ranunculaceae family, contains protoanemonin, an irritant lactone that is toxic to cats and dogs. The ASPCA lists Anemone as toxic to dogs, cats, and horses. Symptoms include oral irritation, excessive salivation, vomiting, diarrhoea, muscle tremors, and rarely haematuria and seizures. All parts of the fresh plant are toxic; handle with gloves as sap can irritate human skin. 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.

Grecian Windflower care — frequently asked questions

What is the common name for Anemone blanda?

Anemone blanda is most commonly called Grecian Windflower, but it is also known as Grecian windflower, Winter windflower, Spring windflower. The names refer to the same species, so care instructions for Grecian Windflower apply identically to anything sold as Winter windflower.

How much light does grecian windflower need?

Grecian Windflower grows best in bright indirect light (just back from a sunny window). Grows well in full sun or partial shade; in the garden it thrives under the canopy of deciduous trees, receiving sun in early spring before the tree canopy closes.

How often should I water grecian windflower?

Water grecian windflower moderate in spring, dry during summer dormancy. Water regularly during the growing and flowering period in spring; allow the soil to dry out almost completely once the foliage yellows and dies back in early summer. 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 grecian windflower toxic to cats and dogs?

Grecian Windflower is toxic to pets. Anemone blanda, like all members of the Ranunculaceae family, contains protoanemonin, an irritant lactone that is toxic to cats and dogs. The ASPCA lists Anemone as toxic to dogs, cats, and horses. Symptoms include oral irritation, excessive salivation, vomiting, diarrhoea, muscle tremors, and rarely haematuria and seizures. All parts of the fresh plant are toxic; handle with gloves as sap can irritate human skin.

What USDA hardiness zone does grecian windflower grow in?

Grecian Windflower is rated for USDA zone 4-8 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Grecian Windflower deep-dive guides

Every aspect of grecian windflower care, each with its own calibrated guide:

Featured in these plant shortlists

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

Related guides

Grecian Windflower is also known as Grecian windflower, Winter windflower, and Spring windflower.