Knotweed, Persicaria runcinata 'Purple Fantasy'

Persicaria runcinata ‘Purple Fantasy’

Knotweed

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does not flower in June

Plant does flower in July

Plant does flower in August

Plant does flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

  • Botanical name: Persicaria runcinata 'Purple Fantasy'
  • Common name: Knotweed
  • Family: Polygonaceae
  • Plant Type: Perennial, Semi-evergreen
Flower colour:

Pink

White

Foliage colour:

Variegation

Persicaria runcinata ‘Purple Fantasy’ is a brilliantly coloured semi-evergreen perennial, grown predominantly for its patterned leaves.

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This vigorous plant can be a bit thuggish, spreading by means of runners. Fortunately, it’s easy to pull up should it start spreading too much, in spring. Alternatively try restricting it to a large container. From midsummer into early autumn it produces small but pretty ice-pink flowers. Persicaria runcinata ‘Purple Fantasy’ is good for providing colourful ground cover in shade, too.

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For best results, grow Persicaria runcinata ‘Purple Fantasy’ in full sun or partial shade in moist, well-drained soil. Wear gloves when pulling up as some people find that the foliage irritates the skin.

How to grow Persicaria 'Purple Fantasy'

  • Plant size

    60cm height

    1.5m spread

  • Aspect

    South facing, east facing, west facing

  • Position in border

    Front

  • Sun exposure: Dappled shade, full sun, partial shade
  • Hardiness: Hardy
  • Soil type: Acidic / chalky / alkaline / clay / heavy / moist / well drained / light / sandy

Plant calendar

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Plant
Plant

Do not Plant in January

Do not Plant in February

Do Plant in March

Do Plant in April

Do Plant in May

Do not Plant in June

Do not Plant in July

Do not Plant in August

Do not Plant in September

Do not Plant in October

Do not Plant in November

Do not Plant in December

Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does not flower in June

Plant does flower in July

Plant does flower in August

Plant does flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

Divide
Divide

Do not Divide in January

Do not Divide in February

Do Divide in March

Do Divide in April

Do not Divide in May

Do not Divide in June

Do not Divide in July

Do not Divide in August

Do not Divide in September

Do Divide in October

Do Divide in November

Do not Divide in December

Take cuttings
Take cuttings

Do not Take cuttings in January

Do not Take cuttings in February

Do not Take cuttings in March

Do not Take cuttings in April

Do Take cuttings in May

Do Take cuttings in June

Do Take cuttings in July

Do not Take cuttings in August

Do not Take cuttings in September

Do not Take cuttings in October

Do not Take cuttings in November

Do not Take cuttings in December

Cut back
Cut back

Do not Cut back in January

Do not Cut back in February

Do not Cut back in March

Do not Cut back in April

Do not Cut back in May

Do not Cut back in June

Do not Cut back in July

Do not Cut back in August

Do not Cut back in September

Do Cut back in October

Do Cut back in November

Do not Cut back in December

Persicaria 'Purple Fantasy' and wildlife

Persicaria 'Purple Fantasy' is known for attracting bees and other pollinators. It has nectar/pollen rich flowers.

Attractive to Bees

Does not attract Beneficial insects

Does not attract Birds

Does not attract Butterflies​/​Moths

Attractive to Other pollinators

Is Persicaria 'Purple Fantasy' poisonous?

Persicaria 'Purple Fantasy' has no toxic effects reported.

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Cats

No reported toxicity to Dogs

No reported toxicity to Horses

No reported toxicity to Livestock

No reported toxicity to People

Plants that go well with Persicaria 'Purple Fantasy'