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Japanese Blood Grass Rubra in the GardenTags plant encyclopedia

Imperata cylindrica 'Rubra'

 

Japanese Blood Grass 'Rubra'

'Rubra' is a deciduous grass forming a loose clump of erect, linear green leaves strongly suffused with deep red, and narrow silvery flower panicles in late summer It forms dense clumps from an underground rhizome. Common names include Japanese Blood Grass. It is widely cultivated as an ornamental plant in temperate regions around the world.

Contributed by @lexusmickey

 
plant Features
  • Japanese Blood Grass Rubra likes full sun to partial shade

    Full sun to partial shade

  • Japanese Blood Grass Rubra likes occasional watering

    Occasional watering

  • Japanese Blood Grass Rubra is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Japanese Blood Grass Rubra likes moist and free draining

    Moist and free draining

 
plant information

Common name

Japanese Blood Grass 'Rubra'

Latin name

Imperata cylindrica 'Rubra'

type

Grass

family

Poaceae

ph

5.0 - 7.5 Acid - Neutral

  • Light

    Japanese Blood Grass Rubra likes full sun to partial shade

    Full sun to partial shade

  • Frost

    Japanese Blood Grass Rubra is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Soil

    Japanese Blood Grass Rubra likes moist and free draining

    Moist and free draining

  • Water

    Japanese Blood Grass Rubra likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant

full grown dimensions

The size of a fully grown Japanese Blood Grass Rubra is 0.50meters x 0.50meters 0.50 M 0.50 M

Imperata cylindrica 'Rubra'

'Rubra' is a deciduous grass forming a loose clump of erect, linear green leaves strongly suffused with deep red, and narrow silvery flower panicles in late summer It forms dense clumps from an underground rhizome. Common names include Japanese Blood Grass. It is widely cultivated as an ornamental plant in temperate regions around the world.


Planting young plants

From Mid Autumn TO Late Spring

Imperata cylindrica are very hardy so they could be planted in the autumn, however late spring is the best time. Newly-bought plants take at least three years to clump up to a decent size and many nurseries specialising in grasses recommend planting in threes and fives. The slightest breeze will add an extra dimension to the winter garden, as well as movement, so it’s important to position all Imperata cylindrica where they catch the light. Don’t tuck them away in deep shade.

 
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