About
Amorpha ouachitensis is a deciduous shrub characterized by its open, somewhat informal growth pattern. The foliage consists of grey-green leaves that measure between 15 and 20 centimeters, composed of smaller oval leaflets. In late spring to early summer, it produces clusters of spikes that range from 10 to 20 centimeters in length, featuring small flowers with purple petals accented by yellow flecks. This shrub typically reaches a height of around 2 meters and has a spread of 1.5 to 2 meters.
About the genus
Amorpha consists of deciduous shrubs characterized by their pinnate foliage and clusters of small, single-petaled flowers that bloom in shades of deep purple or blue during the summer months.
Growing conditions
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- East-facing, South-facing, West-facing, North-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
- Plant type
- Shrubs
- Habit
- Bushy
- Foliage
- Deciduous
- Height
- 1.5-2.5 metres
- Spread
- 1-1.5 metres
- Time to full height
- 5-10 years
- Suggested uses
- Cottage and informal garden, Rock garden, Prairie planting
- Native to
- USA (Oklahoma, Arkansas)
Care notes
- Cultivation
- Grow in moist but well drained soil in full sun or partial shade. Does well in poor, dry sandy soils
- Pruning
- Pruning group 6
- Propagation
- Propagate by seed.
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to rust diseases and powdery mildews