About
Agapanthus 'Blue Horizons' PBR (v) is a robust herbaceous perennial that typically grows to around 80cm tall during its blooming period. It features a cluster of arching, strap-like leaves that are cream-variegated. From mid-summer through autumn, it produces spherical clusters of tubular blue flowers.
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
- H4
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
- Architectural, City and courtyard gardens, Coastal, Cottage and informal garden, Patio and container plants
- 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