Trillium rivale 'Del Norte' — Clump forming

Overview

Trillium rivale 'Del Norte' is a clump forming herbaceous perennial in the genus Trillium, part of the Melanthiaceae family, with deciduous foliage. Trillium rivale 'Del Norte' 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 rivale 'Del Norte' 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 thrives in partial shade and prefers sheltered positions with moist but well-drained loam or sandy soil that is acid to neutral in pH. Hardy to UK zone H5, it is suitable for cottage and informal gardens, flower borders, and underplanting roses and shrubs. Its season of interest spans spring and summer, and it can be propagated by division of rhizomes after flowering or by seed sowing in a shady cold frame.

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 rivale 'Del Norte' 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 rivale 'Del Norte'

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 rivale 'Del Norte'?

Trillium rivale 'Del Norte' prefers partial shade. It suits sheltered positions.

What soil does Trillium rivale 'Del Norte' need?

Trillium rivale 'Del Norte' grows best in loam and sand soil. It prefers acid and neutral soil. Aim for soil that stays moist but well-drained.

Is Trillium rivale 'Del Norte' hardy in the UK?

Trillium rivale 'Del Norte' 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 rivale 'Del Norte'?

Division of rhizomes after flowering, Seed sowing as soon as ripe in pots in a shady cold frame.

More in the Trillium genus

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