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Indigofera heterantha AGM

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© RHS 2001

Characteristics

Plant type

Shrub

Habit

Bushy

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Purple in Autumn and Summer

Foliage

Green and Dark Grey/Silver in Autumn, Spring and Summer

Size

Ultimate height

1.5-2.5 metres

Ultimate spread

1.5-2.5 metres

Time to ultimate height

5-10 years


Preferred common name

Himalayan indigo

Family

Papilionaceae


Indigofera can be deciduous or evergreen trees or shrubs, herbaceous perennials or annuals with pinnate leaves and spikes or racemes of small, pea-like flowers in summer or autumn

I. heterantha is a medium-sized deciduous shrub, herbaceous in colder areas and then making up to 1.2m annual growth. Leaves pinnate with 13-21 small leaflets. Flowers 12mm, rosy-purple, in racemes to 12cm in length from early summer

Synonym(s)

  • Indigofera gerardiana

How to grow

Sunlight

  • Full sun

Aspect

  • North-facing, East-facing, South-facing or West-facing
  • Sheltered or Exposed

Cultivation

Grow in well-drained soil in full sun

Soil

  • Well-drained or Moist but well-drained
  • Acid, Alkaline or Neutral
  • Chalk, Clay, Sand or Loam

Propagation

Propagate by seed or semi-hardwood cuttings

Suggested planting locations and garden types

Banks and Slopes, Flower borders and beds, Low Maintenance or Wall-side Borders


How to care

Pruning

Pruning group 1

Pests

Generally pest free

Diseases

Generally disease free