Overview
Agapanthus 'Blue Giant' is a plant with a clump-forming perennial habit in the genus Agapanthus, part of the Amaryllidaceae family, with strap-like leaves foliage. Agapanthus 'Blue Giant' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H4. Suggested uses include borders, containers and coastal gardens.
About
Agapanthus 'Blue Giant' is a clump-forming perennial cultivar of the genus Agapanthus, belonging to the Amaryllidaceae family. It features strap-like leaves and thrives best in full sun with a south-facing, sheltered aspect. This cultivar prefers well-drained, neutral loam soil and is hardy in the UK to H4. Suitable for borders, containers, and coastal gardens, Agapanthus 'Blue Giant' can be propagated by division or seed sowing.
About the genus
Agapanthus is a genus of plants, the only one in the subfamily Agapanthoideae of the family Amaryllidaceae. The subfamily was formerly treated as a separate family, Agapanthaceae. The family is in the monocot order Asparagales.
Wikipedia contributors, "Agapanthus", CC BY-SA 4.0 — Agapanthus
Growing conditions
Best soil and position for Agapanthus
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Agapanthus 'Blue Giant' size, habit and characteristics
- Habit
- Clump-forming perennial
- Foliage
- Strap-like leaves
- Suggested uses
- Borders, containers, coastal gardens
Care notes
Pruning and caring for Agapanthus 'Blue Giant'
- Propagation
- Division, seed sowing
- Pest resistance
- Susceptible to agapanthus gall midge
- Disease resistance
- Generally disease-resistant
Frequently asked questions
Where is the best place to plant Agapanthus 'Blue Giant'?
Agapanthus 'Blue Giant' prefers full sun. It suits sheltered positions.
What soil does Agapanthus 'Blue Giant' need?
Agapanthus 'Blue Giant' grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Agapanthus 'Blue Giant' hardy in the UK?
Agapanthus 'Blue Giant' has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Agapanthus 'Blue Giant'?
Division, seed sowing.
More in the Agapanthus genus
- Agapanthus 'Maureen'African Lily

- Agapanthus 'Black Buddhist'African Lily
- Agapanthus 'Northern Star'Lily of the Nile
- Agapanthus nutansAfrican Lily