perennial

Lemon Daylily

Hemerocallis lilioasphodelus

The Story

Plant Bio

Hemerocallis lilioasphodelus, commonly known as the Lemon Daylily, features striking yellow flowers that bloom in summer. It is known for its resilience and low maintenance requirements.

This species is particularly valued for its ability to thrive in a variety of soil types and pH levels.

Uses & Benefits:

Ornamental UsesBright yellow flowers add cheerful color to gardens, thriving in full sun and tolerating various soil types.
Practical UsesLow-maintenance perennial ideal for borders and groundcover, requiring minimal care once established.
Ecological BenefitsProvides nectar for pollinators such as bees and butterflies, supporting local biodiversity.

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Siberia, China, Japan

Toxicity

Highly toxic to cats; edible for humans

Planting

How to Grow

  1. Tuck seeds or divisions into well-draining soil in early spring or fall.
  2. Mist cuttings lightly and keep soil moist for root development.
  3. Ensure the plant receives full sun for optimal blooming.
  4. Water regularly, especially during dry spells, to keep soil moist.
  5. Apply a balanced fertilizer in early spring and mid-summer.
  6. Mulch around the base to retain moisture and suppress weeds.

Pro Tip

Plant in well-drained soil with full sun for vibrant blooms and healthy growth.

Keep It Thriving

Care Guide

Do

  • Water regularly, especially during dry periods 🌱
  • Apply fertilizer in early spring and mid-summer
  • Divide clumps every 3-4 years to prevent overcrowding
  • Mulch to conserve moisture and control weeds

Don't

  • Avoid overwatering, which can cause root rot ❌
  • Do not plant in heavy, poorly-draining soil
  • Never neglect to remove dead or faded flowers
  • Avoid excessive fertilization that can lead to lush foliage but fewer flowers

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deadhead
Divide
Mulch
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vibrant border plantColorful perennial groundcoverBright accent in flower beds

Companion Plants

Multiply

Propagation Methods

Good to Know

Common Questions

Lemon Daylily questions

What zones can Lemon Daylily grow in?

Lemon Daylily is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Lemon Daylily deer resistant?

Not reliably. Deer may browse Lemon Daylily, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Lemon Daylily bloom?

Lemon Daylily typically blooms in late spring to early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Lemon Daylily need full sun?

Lemon Daylily does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Lemon Daylily drought tolerant?

Yes — once established (usually after the first full season), Lemon Daylily handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.

Keep exploring

Grow Lemon Daylily with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.