Overview
Helenium 'William Marshall' is a bushy, clump-forming herbaceous perennial in the genus Helenium, part of the Asteraceae family, with deciduous foliage. Helenium 'William Marshall' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H7. Suggested uses include flower borders and beds, prairie planting, wildlife gardens and cut flowers.
About
Helenium 'William Marshall' is a herbaceous perennial cultivar of the Helenium genus, known for its upright, bushy, clump-forming habit. Like other Helenium plants, it produces prominent daisy-like flower heads that bloom through summer and into autumn. This deciduous plant thrives in fertile, moist but well-drained loam soil with a neutral pH, preferring full sun and a south, east, or west-facing aspect. Hardy to UK zone H7, it is suitable for flower borders, prairie planting, wildlife gardens, and as cut flowers.
Growing conditions
Best soil and position for Helenium
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
Helenium 'William Marshall' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Bushy, Clump-forming
- Foliage
- Deciduous
- Suggested uses
- Flower borders and beds, Prairie planting, Wildlife gardens, Cut flowers
Care notes
Pruning and caring for Helenium 'William Marshall'
- Propagation
- Division in autumn or spring, Basal cuttings in spring
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to leaf spot, powdery mildew
Frequently asked questions
Where is the best place to plant Helenium 'William Marshall'?
Helenium 'William Marshall' prefers full sun. It suits exposed and sheltered positions.
What soil does Helenium 'William Marshall' need?
Helenium 'William Marshall' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Helenium 'William Marshall' hardy in the UK?
Helenium 'William Marshall' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Helenium 'William Marshall'?
Division in autumn or spring, Basal cuttings in spring.
More in the Helenium genus
- Helenium 'Moerheim Beauty'
- Helenium 'Sunshine'
- Helenium 'Tiny Dancer'
- Helenium autumnale 'All Gold'
- Helenium autumnale 'Coccineum-bruneum'
- Helenium autumnale 'Grandiflorum'
- Helenium 'Chesney'
- Helenium 'Gay-go-round'