About
Agapanthus 'Midnight Madness' is a clump-forming herbaceous perennial that sheds its leaves in the colder months. It features elongated, strap-like leaves of a mid-green hue. During summer, this plant sends up robust stems topped with clusters of trumpet-shaped flowers in shades ranging from mid to dark blue. Each petal exhibits a darker central rib, adding detail to the floral display.
About the genus
Agapanthus consists of perennial plants that grow in clusters, featuring long, narrow leaves. Some species maintain their foliage year-round, while others do not. These plants produce upright stems topped with rounded clusters of bell-shaped flowers, which can be blue or white.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- City and courtyard gardens, Coastal, Cottage and informal garden, Patio and container plants, Architectural
- Toxicity
- Humans/Pets (dogs, cats): harmful if eaten. Wear gloves and other protective equipment when handling. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Care notes
- Cultivation
- Grow in fertile, moist but well-drained soil in full sun or grow in a container. In cold areas, mulch well overwinter and take containers under cover. See agapanthus cultivation
- Pruning
- In late autumn remove or tidy up any remaining leaves, but seedheads can be left as they look attractive over winter
- Propagation
- Propagate by division every three to four years in spring
- Pest resistance
- May be susceptible to slugs and snails and agapanthus gall midge
- Disease resistance
- May be susceptible to a virus