Hemerocallis lilioasphodelus
yellow daylily
A spreading, rhizomatous perennial,l to 80cm in height, with narrow leaves and fragrant, lily-shaped lemon yellow flowers 8-9cm in width
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drained, Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
Aspect
West–facing or South–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Asphodelaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Potentially harmful
- TOXIC to pets (cats) - see the HTA guide to potentially harmful plants for further information and useful contact numbers
- Genus
Hemerocallis may be evergreen or herbaceous perennials, with narrow, strap-shaped leaves and funnel-shaped flowers on erect stems in late spring or early summer
- Name status
Correct
- Plant range
- Europe Asia
How to grow
Cultivation
Grow in fertile, moist but well-drained soil preferably in full sun. Flowering is likely to be poor in shadier situations. Tolerant of heavy clay and poorer soils. May need watering in spring to early summer in dry conditions to ensure flowering. See Hemerocallis cultivation for details
Propagation
Propagate by division in early spring or early autumn. Propagate from seed (indoors or outdoors) in autumn or spring
Suggested planting locations and garden types
- City and courtyard gardens
- Patio and container plants
- Coastal
- Cottage and informal garden
- Flower borders and beds
Pruning
Cut back flower stems after flowering has finished. Remove dead foliage as required
Pests
May be susceptible to aphids, slugs, snails, glasshouse red spider mite and thrips. This late-flowering species is less likely to suffer from Hemerocallis gall midge
Diseases
Generally disease-free but may be susceptible to fungal leaf spot and rust diseases or bacterial leaf and stem rot
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.