× Phyllosasa tranquillans

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× <em>Phyllosasa</em> <em>tranquillans</em> RHS

Synonyms

× Hibanobambusa tranquillans
Phyllostachys tranquillans
Semiarundinaria tranquillans

Bamboos
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A vigorous, spreading bamboo with a dense habit, upright, yellow-green canes and bold, dark green leaves to 25cm in length

Position

Full sun

Soil Types

Clay, Loam

Max Height

2.5-4 metres

Max Spread

4-8 metres

Size

Time to Maturity
2–5 years
Max Spread
4-8 metres
Max Height
2.5-4 metres

Growing Conditions

Clay Loam
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
West–facing or South–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
Bushy
Genus
A nothogenus of just one species of tall, spreading, clump-forming Japanese bamboo with dark green foliage
Name Status
Correct

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

Propagate by rhizome cuttings or division of established plants in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Architectural
  • Cottage and informal garden
  • 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

Generally pest-free

Diseases

Generally disease-free