Overview

Hemerocallis 'Seal of Approval' is a clump forming herbaceous perennial in the genus Hemerocallis, part of the Asphodelaceae family, with semi evergreen foliage. Hemerocallis 'Seal of Approval' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H6. Suggested uses include coastal and cottage and informal garden.

About

Hemerocallis 'Seal of Approval' is a clump-forming herbaceous perennial belonging to the genus Hemerocallis, known for its narrow, strap-like foliage and funnel-shaped blooms on upright stems. This semi-evergreen cultivar thrives in full sun or partial shade, favouring fertile, moist but well-drained soil across a range of types including chalk, clay, loam, and sand. Suitable for coastal, cottage, and informal gardens, it is hardy in the UK (H6) and flowers in summer. Propagation is best done by division in early spring or early autumn.

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 4.0Daylily

Growing conditions

Best soil and position for Hemerocallis

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

Hemerocallis 'Seal of Approval' size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Clump forming
Foliage
Semi evergreen
Suggested uses
Coastal, Cottage and informal garden

Care notes

Pruning and caring for Hemerocallis 'Seal of Approval'

Propagation
Propagate by division in early spring or early autumn
Pest resistance
May be susceptible to aphids, slugs, snails, hemerocallis gall midge, glasshouse red spider mite and Thrips
Disease resistance
May be susceptible to fungal leaf spot and rust diseases or bacterial leaf and stem rot

Frequently asked questions

Where is the best place to plant Hemerocallis 'Seal of Approval'?

Hemerocallis 'Seal of Approval' prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Hemerocallis 'Seal of Approval' need?

Hemerocallis 'Seal of Approval' 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 Hemerocallis 'Seal of Approval' hardy in the UK?

Hemerocallis 'Seal of Approval' 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 Hemerocallis 'Seal of Approval'?

Propagate by division in early spring or early autumn.

More in the Hemerocallis genus

Browse all Hemerocallis