Hemerocallis 'Corky' (Daylily) — Clump forming

Overview

Hemerocallis 'Corky' is a clump forming perennial in the genus Hemerocallis, part of the Asphodelaceae family, with deciduous foliage. Hemerocallis 'Corky' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H6. Suggested uses include flower borders and beds.

About

Hemerocallis 'Corky' is a daylily cultivar in the Asphodelaceae, a herbaceous, clump-forming perennial. It produces basal, arching strap-like leaves and flowering scapes bearing blooms that typically last for a single day. Flowering in the UK occurs from June to August. The plant grows from rhizomes and may rely on fibrous or fibrous-tuberous roots for seasonal storage.

About the genus

A daylily, day lily or ditch-lily is a flowering plant in the genus Hemerocallis, a member of the family Asphodelaceae, subfamily Hemerocallidoideae, native to Asia. Despite the common name, it is not taxonomically classified in the lily genus. Gardening enthusiasts and horticulturists have long bred Hemerocallis species for their attractive flowers; a select few species of the genus have edible petals, while some are extremely toxic.

Wikipedia contributors, "Daylily", CC BY-SA 4.0 — Daylily

In the garden

Hemerocallis 'Corky' sits in the Asphodelaceae family and belongs to the genus Hemerocallis, a group of perennial, rhizomatous plants originally from Asia. Cultivars in this group are the product of long-standing selection by growers and can be encountered widely in ornamental planting schemes; individual blooms characteristically open and fade within twenty-four hours, while the clump produces successive buds across the season. Growth arises from basal, strap-like leaves and underground rhizomes, with some Hemerocallis types also producing stolons; the root system can be fibrous or fibrous-tuberous and functions as a reserve for water and nutrients. In practice this means the plant re-establishes its leaf clump each year and carries flower scapes above the foliage during the June to August flowering period. For a UK gardener assessing placement, allow enough room for the clump to develop and to display the flowering scapes through summer. Observe the clump after flowering to judge whether renewal or splitting is needed to maintain vigour. Remember that the hallmark of Hemerocallis 'Corky' is its succession of short-lived individual flowers across the June–August window rather than long-lived single blooms.

Growing conditions

Best soil and position for Hemerocallis

Sunlight: Full sun
Soil type: Loam
Soil pH: Neutral
Soil moisture: Moist but well-drained
Aspect: South-facing
Exposure: Sheltered
UK hardiness: H6

Plant details

Hemerocallis 'Corky' size, habit and characteristics

Plant type: Perennial
Habit: Clump forming
Foliage: Deciduous
Suggested uses: Flower borders and beds

Care notes

Pruning and caring for Hemerocallis 'Corky'

Propagation: Division in early spring or early autumn
Pest resistance: Aphids, Slugs, Snails, Hemerocallis gall midge, Glasshouse red spider mite, Thrips
Disease resistance: Fungal leaf spot, Rust diseases, Bacterial leaf and stem rot