About
Adenophora polyantha is a herbaceous perennial that bears spikes of funnel-shaped flowers in a deep sky-blue hue during the summer months. This plant typically grows to a height of 1 meter.
About the genus
Adenophora are herbaceous perennials that share a close relationship with Campanula. They produce large clusters of bell-shaped or funnel-shaped flowers in shades of violet-blue during the summer months. These blooms rise above rounded leaves that form at the base of the plant.
Growing conditions
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Columnar upright
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Cottage and informal garden, Prairie planting
- Native to
- Korea, Manchuria
Care notes
- Cultivation
- Grow in light, humus-rich, moist but well-drained soil in full sun or partial shade
- Pruning
- Cut back flowered stems in autumn
- Propagation
- Propagate by seed or propagate by cuttings from basal shoots
- Pest resistance
- May be susceptible to slugs, snails and vine weevils
- Disease resistance
- Generally disease-free