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Plant care

Japanese Anemone 'Honorine Jobert' (Japanese Anemone) care

Anemone x hybrida

Also called Japanese Anemone, Windflower, Autumn Anemone.

RHS H6USDA 4-8Toxic to petsIndoor 100-150 cm tall in flower

Watering rhythm

7-10days

When the top 3-4 cm of soil is dry, roughly every 7-10 days

Light

Bright indirect light (just back from a sunny window)

Soil

Moist, fertile, humus-rich, well-drained loam

Humidity

40-65%

Temp

-20-28°C

Pet safety

Toxic to pets

Mature size

100-150 cm tall in flower

Care at a glance

Light

Japanese Anemone 'Honorine Jobert' 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 partial shade to full sun. In hot climates, afternoon shade is beneficial; in cooler areas full sun produces the strongest flowering. Avoid deep, dense shade. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water japanese anemone 'honorine jobert' when the top 3-4 cm of soil is dry, roughly every 7-10 days. 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. Appreciates consistently moist soil, particularly during establishment and through dry summer spells. Once established it is reasonably drought-tolerant. Mulch to retain moisture.

Soil and pot

Japanese Anemone 'Honorine Jobert' grows best in moist, fertile, humus-rich, well-drained loam. Thrives in any reasonably fertile garden soil with good moisture retention. Incorporate compost before planting. Tolerates clay soils if drainage is adequate. 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

Japanese Anemone 'Honorine Jobert' sits happiest at around 40-65% humidity and -20-28°C (-4-82°F). Average garden or light woodland humidity is suitable. Good air circulation around plants helps prevent any fungal issues, although this species is generally robust. 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 japanese anemone 'honorine jobert' sparingly. Apply a balanced fertiliser or well-rotted compost mulch in spring as new growth emerges. Established clumps in fertile soil often need no additional feeding; avoid over-feeding, which produces leafy growth 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 japanese anemone 'honorine jobert' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Slow establishmentJapanese anemones may sulk or fail to flower in the first 1-2 years; be patient and keep well watered — once established they spread vigorously.
  • Invasive spreadRhizomes can spread extensively and are difficult to remove completely; plant where this is manageable or contain with root barriers.
  • Powdery mildewAffects foliage in dry summers; not usually severe enough to require treatment — remove affected leaves and water regularly at the base.
  • Leaf spotBrown leaf spots may appear in wet seasons; remove affected foliage and improve air circulation.
  • Vine weevilGrubs may attack roots in containers; treat container-grown plants with nematodes or a systemic vine-weevil treatment.

Companion plants

Japanese Anemone 'Honorine Jobert' pairs well with Hydrangea arborescens, Actaea simplex, Persicaria amplexicaulis, and Hakonechloa macra. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Divide rhizomatous clumps in autumn or early spring, replanting sections with at least one growing point. Root cuttings taken in autumn or early winter root readily in a cold frame. 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

Japanese Anemone 'Honorine Jobert' is toxic to pets. The ASPCA lists Anemone species as toxic to dogs, cats, and horses; all parts contain ranunculin which converts to the irritant protoanemonin. Ingestion can cause drooling, vomiting, diarrhoea, and in significant quantities, more serious effects. Seek veterinary attention immediately if ingestion is suspected. 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.

Japanese Anemone 'Honorine Jobert' care — frequently asked questions

What is the common name for Anemone x hybrida?

Anemone x hybrida is most commonly called Japanese Anemone 'Honorine Jobert', but it is also known as Japanese Anemone, Windflower, Autumn Anemone. The names refer to the same species, so care instructions for Japanese Anemone 'Honorine Jobert' apply identically to anything sold as Japanese Anemone.

How much light does japanese anemone 'honorine jobert' need?

Japanese Anemone 'Honorine Jobert' grows best in bright indirect light (just back from a sunny window). Grows well in partial shade to full sun. In hot climates, afternoon shade is beneficial; in cooler areas full sun produces the strongest flowering. Avoid deep, dense shade.

How often should I water japanese anemone 'honorine jobert'?

Water japanese anemone 'honorine jobert' when the top 3-4 cm of soil is dry, roughly every 7-10 days. Appreciates consistently moist soil, particularly during establishment and through dry summer spells. Once established it is reasonably drought-tolerant. Mulch to retain moisture. 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 japanese anemone 'honorine jobert' toxic to cats and dogs?

Japanese Anemone 'Honorine Jobert' is toxic to pets. The ASPCA lists Anemone species as toxic to dogs, cats, and horses; all parts contain ranunculin which converts to the irritant protoanemonin. Ingestion can cause drooling, vomiting, diarrhoea, and in significant quantities, more serious effects. Seek veterinary attention immediately if ingestion is suspected.

What USDA hardiness zone does japanese anemone 'honorine jobert' grow in?

Japanese Anemone 'Honorine Jobert' 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.

Japanese Anemone 'Honorine Jobert' deep-dive guides

Every aspect of japanese anemone 'honorine jobert' care, each with its own calibrated guide:

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

Related guides

Japanese Anemone 'Honorine Jobert' is also known as Japanese Anemone, Windflower, and Autumn Anemone.