Japanese Anemone

Anemone hupehensis

Late-summer flowers on slender stems, still standing when much of the border has already gone over.

Light Partial shade through to full sun.
Water Moist but well-drained.
Height 1.2 m
Spread 23.6 in
Spacing 60 cm
Root depth 4–12 in
Type
Flower · Perennial
Botanical family
Mixed / other
Foliage color
Green
Flower color
Pink
Sunlight
Partial shade through to full sun.
Watering
Moist but well-drained.
Feeding
A light feed once a year.
Frost tolerant
Yes
Flowering
August
  • Mar–Jul Spring Growth
  • Jul–Aug Bud Break
  • Aug–Oct Flowering
  • Oct–Nov Growing
  • Nov–Dec Leaf Fall
  • Jan–Mar Leaf Fall
Plant spacing
23.6 in
In-row spacing
23.6 in
Between rows
23.6 in
Square-foot density
Not suited to SFG
Root system
Running rhizomes
Working depth
4–12 in
Can reach
18 in down where the soil allows
Spread
4–8 ft across, about 2–4× the width of the plant
Shallowest pot
12 in of soil

It travels underground, and it does not stop where you would like it to. Taking the tops off does nothing at all to the run, and every fragment left behind is a new plant. In open ground the only boundary that holds is a barrier sunk two spits deep, or a container with its rim standing clear of the soil.

It takes a year to settle and then runs steadily, coming up through neighbours and regrowing from every piece of root left behind. Splendid where it can have its head, a long argument in a small border.

The habit is Japanese Anemone’s own; the figures are what that habit usually comes to at this size, not a measurement of this species. Roots follow the soil either way: a compacted pan, a high water table or heavy clay stops them well short of any of it, and deep open ground lets them go further.

Beneficial predators that hunt this plant's pests — grow their favourite flowers nearby to recruit them. companion plant

  • Beneficial nematodes Steinernema & Heterorhabditis spp.

    Microscopic worms watered onto damp soil that hunt down soil-dwelling grubs and release a bacterium that kills them within days. Timing is the whole thing: warm, damp soil and a small target grub, which means late summer for most of what they are used against.

  • Frogs & toads Anura

    A resident toad works the beds every night for slugs, cutworms, and weevils. Recruit them with water — even a sunken basin pond — plus damp shade and an upturned-pot toad house; skip the slug pellets that poison their prey.

  • Ground beetle Carabidae

    Fast, glossy night hunters that patrol the soil surface for slugs, cutworms, and root-fly larvae. Give them daytime cover — thick perennial edges, stepping stones, a log — and skip the tillage that wrecks their burrows.

    Plant nearby LavenderMintThyme
  • Hedgehog Erinaceus europaeus

    A European animal, and worth saying so plainly: there are no hedgehogs in North America, and the ally that does the same night shift here is the toad, the opossum or the ground beetle. Where they do occur, cut a gap in the fence and skip the pellets.

  • Centipedes Chilopoda

    Flat, fast, one pair of legs to a segment — and a predator, unlike the slow round millipede it is constantly confused with. It hunts slugs, cutworms, springtails and woodlice by night under mulch and stones. Learn the difference and leave this one alone.

  • Garden birds Passeriformes

    Both things are true: birds strip your currants and a brood of blue tits takes several thousand caterpillars out of one fruit tree in a fortnight. Net what you must and welcome them everywhere else — a nest box near the apples is worth more than a spray.

  • Rove beetle Staphylinidae

    Slim, quick beetles with short wing cases that hunt in soil and litter, taking root-fly eggs and larvae, fungus-gnat larvae, and mites. Mulch and undisturbed ground keep them resident year-round.

    Plant nearby MintThyme
  • Salamanders & newts Caudata

    Damp-loving hunters of slugs, worms, woodlice and beetle larvae that spend the day under a log or a stone and work the beds at night. Companions to the toads: they want the same damp shade, the same log pile, and the same absence of slug pellets.

  • Snakes & lizards Colubridae & Phrynosomatidae

    A garter snake works the beds for slugs and voles and a fence lizard clears grasshoppers off a sunny wall. Almost every snake a gardener meets is harmless and useful; give them a log pile, a warm flat stone and a bit of cover and they stay.