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Shrubs

Indigofera kirilowii var. alba

white-flowered Kirilow indigo

Spreading, deciduous shrub to 75cm tall with upright shoots and bright green leaves to 15cm long, composed of almost diamond-shaped leaflets, and bearing white flowers in dense racemes 13cm long, in early and midsummer.

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Ultimate height

0.5–1 metres

Time to ultimate height

5–10 years

Ultimate spread

0.5–1 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

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)

Botanical details

Family: Fabaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Spreading branched
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: Unresolved

How to grow

Cultivation

Grow in well-drained, moderately fertile soil in full sun

Propagation

Propagate by semi-ripe cuttings in early or midsummer or propagate by seed in a coldframe in autumn

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Flower borders and beds
Wall side borders

Pruning

Pruning group 1 or Pruning group 13 if wall trained, 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

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