About

Agapanthus 'Celebration' is a clump-forming perennial that reaches a height of 0.8 meters. It features upright, strap-like leaves that are dark green in color. During the summer, it produces erect stems topped with rounded, open umbels of slender, soft blue flowers that hang gracefully.

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

Loam, Sand, Chalk, Clay

Soil pH

Acid, Alkaline, Neutral

Soil moisture

Moist but well-drained

Aspect

South-facing, West-facing, East-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

Cottage and informal garden, Architectural, Coastal, Patio and container plants, Mediterranean climate plants, Sub-tropical, City and courtyard gardens

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

In mild areas, grow in well-drained soil in a sunny, sheltered position. In areas with cold, wet winters, over-winter in a cold greenhouse and plant out in early Summer. Also suitable for a container in full sun, water well during the growing season and liquid feed monthly from Spring to flowering. See agapanthus cultivation

Pruning

No need to cut down in Autumn, as the seedheads look attractive over Winter

Propagation

Propagate by division every three to four years in Spring

Pest resistance

May be susceptible to slugs and snails, watch out for agapanthus gall midge

Disease resistance

May be susceptible to a virus