Daylily
Hemerocallis lilioasphodelus
lilioasphodelus
About this plant
Hemerocallis lilioasphodelus, commonly known as the lemon daylily, is a perennial plant with long, slender green leaves and bright yellow, trumpet-shaped flowers that bloom in early summer. Each flower lasts only one day, but the plant produces many blooms over several weeks. It is popular in gardens for its cheerful color and ease of care.
Taxonomy
- Genus
- Hemerocallis
- Family
- Asphodelaceae
- Higher classification
- Order Asparagales
- Plant type
- Perennial
- Lifespan
- Perennial
Origin & Distribution
- Native region
- Europe, Asia
- Distribution
- Widely cultivated in temperate regions worldwide, originally native to parts of Europe and Asia.
Care
- Light preference
- Full sun
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Preferred window facing
- South-facing, West-facing, East-facing
- Watering frequency
- Moderate
- Watering interval
- 5–10 days
- Humidity
- Normal
- Minimum
- -30 °C
- Maximum
- 35 °C
- Optimal
- 15-25 °C
- USDA hardiness zones
- 3-9
- Soil pH
- 6.0-7.5 (neutral to slightly acidic)
- Soil type
- well-draining loam or garden soil
Watering. Water regularly during the growing season, allowing the soil to dry slightly between waterings. Established plants tolerate some drought.
Fertilizing. Apply a balanced, slow-release fertilizer in early spring as new growth begins. Additional feeding during the growing season can promote more blooms but is not essential.
Hemerocallis lilioasphodelus is a tough and easy-to-grow perennial that thrives in full sun and well-drained soil. It tolerates drought well once established and requires minimal maintenance. Overwatering or poor drainage can cause root problems, but generally it is a low-maintenance plant.
Propagation
- Propagation methods
- Division, Seeds
- Care difficulty
- Easy
Ornamental features
- Flowering
- Yes
- Flowering period
- early_summer
Bright yellow trumpet-shaped flowers, arching green leaves, clumping growth habit
Toxicity & Safety
- Toxic to humans
- Non-toxic
- Toxic to pets
- Non-toxic
- Weed potential
- Not considered a weed
Generally considered non-toxic to humans and pets, but ingestion of large amounts is not recommended.
Allergy information
- Allergy risk
- Low
- Allergy triggers
- Pollen
- Pollen level
- Moderate
Daylilies like Hemerocallis lilioasphodelus produce pollen that can cause mild allergic reactions in some people, especially those sensitive to pollen. Symptoms may include sneezing or itchy eyes. To reduce exposure, avoid handling the flowers during peak bloom and keep the area clean of fallen petals.
Common problems
Common problems include root rot from overwatering or poor drainage, and occasional pest issues like aphids or spider mites if conditions are too dry or crowded.
Uses
Popular ornamental garden plant valued for its bright flowers and easy care. Often used in borders, mass plantings, and naturalized areas.
Notes
Prune back dead flower stalks after blooming to encourage tidy growth. Dividing clumps every 3-5 years helps maintain vigor. It can tolerate a range of soils but prefers well-drained conditions.