Overview
Inula obtusifolia is a clump-forming herbaceous perennial in the genus Inula, part of the Asteraceae family, with deciduous foliage. Inula obtusifolia grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H6. Suggested uses include wildflower meadow and wildlife gardens.
About
Inula obtusifolia is a clump-forming herbaceous perennial belonging to the genus Inula, known for its substantial basal foliage and yellow, daisy-like flower heads. This deciduous plant thrives in full sun or partial shade, favouring south- or west-facing aspects and can tolerate both exposed and sheltered conditions. It grows well in a variety of soil types, including chalk, clay, loam, and sand, with a preference for moist but well-drained soil across a range of pH levels. Hardy to UK zone H6, it is suitable for wildflower meadows and wildlife gardens, with interest in spring. Propagation is by seed or division, and planting out is recommended after the last frost in fertile, well-drained soil.
Growing conditions
Best soil and position for Inula
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
Inula obtusifolia size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump-forming
- Foliage
- Deciduous
- Suggested uses
- Wildflower meadow, Wildlife gardens
Care notes
Pruning and caring for Inula obtusifolia
- Propagation
- Seed, Division
- Pest resistance
- Generally pest-free
- Disease resistance
- Powdery mildews may be a problem in conditions that are too dry
Frequently asked questions
Where is the best place to plant Inula obtusifolia?
Inula obtusifolia prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Inula obtusifolia need?
Inula obtusifolia is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
Is Inula obtusifolia hardy in the UK?
Inula obtusifolia has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.
How do I propagate Inula obtusifolia?
Seed, Division.
More in the Inula genus
- Inula acaulis
- Inula crithmoidesgolden samphire
- Inula ensifolia 'Compacta'
- Inula ensifolia 'Gold Star'
- Inula heterolepis
- Inula orientalis 'Grandiflora'
