About
Aconitum 'Newry Blue' is a tall, slender herbaceous perennial that can reach heights of up to 1.5 meters. Its foliage consists of rounded, deep green leaves that are segmented into five or seven lobes. From midsummer through late summer and sometimes into autumn, it produces elongated, branched racemes adorned with hooded, deep blue flowers that can extend to approximately 60 centimeters in length.
About the genus
Aconitum consists of herbaceous perennials or biennials characterized by lobed foliage and clusters of hooded flowers arranged in racemes or panicles.
Growing conditions
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, North-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 1-1.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Cottage and informal garden, Wildlife gardens, Architectural
- Toxicity
- TOXIC if eaten, avoid skin contact. Wear gloves and other protective equipment when handling. Pets: TOXIC if eaten, avoid skin contact - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Care notes
- Cultivation
- Grows best in deep, cool, moisture-retentive soil in partial shade, but will also tolerate most soils and full sun if soil is humus-rich and protected with mulch to ensure that it is moist throughout the growing season; provide support if needed; use protective gloves. See staking perennials for further advice
- Pruning
- No pruning required except cutting back dead stems; use protective gloves
- Propagation
- Propagate by division in autumn or late winter; division every few years may encourage good flowering stems, though plants may be slow to re-establish; use protective gloves
- Pest resistance
- Generally pest-free but may be susceptible to aphids
- Disease resistance
- May be susceptible to fungal stem rot, powdery mildews, and Verticillium wilt