Indigofera pendula

RHS Plant Profile
weeping indigo

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weeping indigo RHS
weeping indigo RHS

Synonyms

Indigofera potaninii misapplied

Shrubs
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An upright, deciduous shrub, to 3m, with arching branches bearing blue-green leaves, up to 15cm long, each with 15 or 17 leaflets. The wisteria-like flowers are rosy-purple, in hanging sprays, up to 25cm long, produced from mid-summer to autumn

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

2.5-4 metres

Max Spread

1.5-2.5 metres

Size

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

Growing Conditions

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

Position

Full sun
Aspect
South–facing or West–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)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Fabaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
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
Name Status
Correct
Plant Range
SW China

How to Grow

Cultivation

Grow in light, well-drained soil in a sheltered position in full sun

Propagation

Propagate by seed or semi-hardwood cuttings

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Low Maintenance
  • Banks and slopes
  • Wall side borders
  • Flower borders and beds

Pruning

Pruning group 1, but can be hard pruned in spring if needed

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus in gardens where it is present but insufficient data to determine degree of susceptibility