Amorpha fruticosa

Bastard Indigo

Amorpha fruticosa, or Bastard Indigo, is a large deciduous shrub with feathery leaves and slender racemes of deep purple flowers tipped with orange. Blooming in late spring and early summer, it adds unusual colour and form. Medium to large in scale, it is drought tolerant and generally pest free. Its spreading habit provides both structure and seasonal interest for Irish gardens.

Flowering Months

Jan J

Feb F

Mar M

Apr A

May M

Jun J

Jul J

Aug A

Sep S

Oct O

Nov N

Dec D

Size

Max Height

2.5 m — 4.0 m

Max Spread

2.5 m — 4.0 m

Growth Habit

Densely branched plant with compact, leafy, rounded overall shape.

Planting Position

Sunlight i Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.

Full Sun Part Shade

Aspect i Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.

North South East West

Exposure i Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.

Exposed / Sheltered

Hardiness i Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.

(−20 to −15 °C) Very cold-hardy

Ideal Soil Conditions

Soil Type i Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.

Loam Sand

Soil Moisture i Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.

Free draining

Soil pH i Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.

Acid Alkaline Neutral

Plant Uses & Merits

Uses

Flower Borders

Merits

Drought Resistant
Generally pest-free
Low Maintenance

Amorpha fruticosa

Bastard Indigo

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Amorpha fruticosa

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