Pinellia cordata 'Yamazaki'

RHS Plant Profile
miniature green dragon 'Yamazaki'

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Herbaceous Perennial

A compact tuberous perennial to around 20cm high, with long, heart-shaped dark green leaves, with paler silvery green markings on the veins and a purple flush on the undersides. In ideal conditions leaves can be up to 25cm long. Solitary, small greenish spathes, surrounding a cream-coloured spadix with a long protruding 'tail', are produced sporadically from spring to late summer in cultivation; flowers are strongly fragrant and followed by small oval-shaped green berries

Position

Full shade, Partial shade

Soil Types

Chalk, Loam, Sand, Clay

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

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

Position

Full shade Partial shade
Aspect
East–facing or North–facing
Exposure
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)
H6

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Araceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
A genus of around 17 plants more commonly known as 'Green Dragons' due to their green, hooded spathe and long spadix. The green foliage varies in shape
Name Status
Accepted

How to Grow

Cultivation

Thrives in light shade in a well-drained, humus rich soil that doesn't dry out too much in summer

Propagation

Propagate by bulbils, which form at the base of the leaves; these are easily detached when ripe (usually as the leaves begin to wither) and must be sown straight away so they don't dry out. Alternatively, allow the bulbils to drop and transplant the young plants the following year

Suggested planting locations and garden types

  • Patio and container plants
  • Rock garden
  • Garden edging
  • Ground cover

Pruning

No pruning required

Pests

May be susceptible to slugs

Diseases

Generally disease-free