× Phyllosasa tranquillans 'Shiroshima'

RHS Plant Profile

Shiroshima bamboo

Other common names

inyouchikuzoku, shiro-shima-inyô

Synonyms

× Hibanobambusa tranquillans 'Shiroshima', Phyllostachys 'Shiroshima', × Hibanobambusa variegata

Bamboos

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A slowly spreading bamboo with slender upright canes, and bold dark green leaves streaked creamy-white, to 25cm in length

Position

Full sun

Soil Types

Clay, Loam

Max Height

1.5-2.5 metres

Max Spread

4-8 metres

Size

Time to Maturity: 5–10 years
Max Spread: 4-8 metres
Max Height: 1.5-2.5 metres

Growing Conditions

Clay Loam

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–facing or West–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H4

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Poaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Clump forming, Suckering
Genus: A nothogenus of just one species of tall, spreading, clump-forming Japanese bamboo with dark green foliage
Name Status: Accepted

How to Grow

Cultivation

Grow in moderately fertile, moist but well-drained or damp soil in partial shade, or full sun where soil stays damp in spring and summer. Usually clump-forming but creeping rootstock can become invasive in warm, moist or favourable conditions and need restraining ; see bamboo control and bamboo cultivation

Propagation

Rhizome cuttings and the division of established plants in Spring

Suggested planting locations and garden types

Architectural
Hedging and screens

Pruning

Remove weak, dead, damaged or spindly stems in spring and thin to show off stems to best effect. Cut out any flowering shoots promptly to discourage more from forming - see bamboo cultivation

Pests

May be susceptible to slugs

Diseases

Generally disease-free