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Imperata cylindrica ‘Red Baron’

Cogon Grass 'Rubra'

Low Maintenance Hardiness H4

Upright leaves emerge green before becoming increasingly blood red on Imperata cylindrica ‘Red Baron’, creating a striking summer and autumn grass display. It needs good light for the strongest colouring and moist but well-drained soil, with plants best monitored for any plain green reverted shoots.
SKU: IMPE-5-Y
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Plant Details

Flowering Months

January, not a flowering month
February, not a flowering month
March, not a flowering month
April, not a flowering month
May, not a flowering month
June, flowering month
July, flowering month
August, flowering month
September, flowering month
October, not a flowering month
November, not a flowering month
December, not a flowering month

Size

Max Height
0.1 m — 0.5 m
Max Spread
0.1 m — 0.5 m
Growth Habit
Forms dense upright tufts or clusters of leaves and stems.

Planting Position

Sunlight Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.
Full Sun Part Shade
Aspect Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
South East West
Exposure Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
Exposed / Sheltered
Hardiness Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
Hardiness H4 (−10 to −5 °C) Hardy in most of Ireland

Ideal Soil Conditions

Soil Type Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
Clay Loam
Soil Moisture Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.
Moist but permeable / Free draining
Soil pH Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Acid Alkaline Neutral

Plant Uses & Merits

Uses
  • Patios / Courtyards
  • Flower Borders
Merits
  • Generally disease-free
  • Generally pest-free
  • Low Maintenance
Imperata cylindrica ‘Red Baron’

Imperata cylindrica ‘Red Baron’ Description

Imperata cylindrica ‘Red Baron’, commonly called Japanese blood grass, is a deciduous ornamental grass with narrow upright leaves that emerge green and develop increasingly vivid red colouring from the tips downward as summer progresses. Mature clumps generally reach around 40 to 50cm high and spread gradually through short rhizomes. Grow in full sun or light partial shade in fertile soil that remains moist but drains freely. Strong light encourages the deepest red foliage. It dies back during winter and fresh shoots emerge in spring. Remove old leaves before new growth begins. Plain green reverted shoots should be removed promptly, as they can be more vigorous than the red form. Avoid planting where uncontrolled spread would be difficult to manage.

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