Overview
Trillium sulcatum yellow-flowered is a clump forming herbaceous perennial in the genus Trillium, part of the Melanthiaceae family, with deciduous foliage. Trillium sulcatum yellow-flowered grows best in partial shade, and tolerates loam and sand soils and acid and neutral pH. Its UK hardiness is rated H5. Suggested uses include cottage and informal garden, low maintenance, flower borders and beds and underplanting of roses and shrubs.
About
Trillium sulcatum yellow-flowered is a clump-forming cultivar of the Trillium genus, which comprises herbaceous perennials growing from rhizomes with upright stems topped by a whorl of ovate or diamond-shaped leaves. This deciduous plant produces distinctive yellow flowers in spring and summer. It thrives in partial shade with a sheltered aspect, preferring fertile, moist but well-drained loam or sandy soils that are acid to neutral in pH. Hardy to UK zone H5, it is suitable for cottage and informal gardens, flower borders, and underplanting of roses and shrubs.
Growing conditions
Best soil and position for Trillium
- Sunlight
- Partial shade
- Soil type
- Loam, Sand
- Soil pH
- Acid, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- North-facing, East-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Trillium sulcatum yellow-flowered size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Suggested uses
- Cottage and informal garden, Low Maintenance, Flower borders and beds, Underplanting of roses and shrubs
Care notes
Pruning and caring for Trillium sulcatum yellow-flowered
- Propagation
- Division of rhizomes after flowering, Seed sowing as soon as ripe in pots in a shady cold frame
- Pest resistance
- Susceptible to slugs and snails
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Trillium sulcatum yellow-flowered?
Trillium sulcatum yellow-flowered prefers partial shade. It suits sheltered positions.
What soil does Trillium sulcatum yellow-flowered need?
Trillium sulcatum yellow-flowered grows best in loam and sand soil. It prefers acid and neutral soil. Aim for soil that stays moist but well-drained.
Is Trillium sulcatum yellow-flowered hardy in the UK?
Trillium sulcatum yellow-flowered has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Trillium sulcatum yellow-flowered?
Division of rhizomes after flowering, Seed sowing as soon as ripe in pots in a shady cold frame.
More in the Trillium genus
- Trillium camschatcense
- Trillium chloropetalum 'Spetchly Park'
- Trillium chloropetalum pink-flowered
- Trillium cuneatumlittle sweet Betsy
- Trillium erectum red-flowered
- Trillium foetidissimumMississippi River wake-robin
- Trillium grandiflorum 'Kath's Dwarf'
- Trillium parviflorum
