2 named cultivars

perennial

Ragged-robin

Lychnis flos-cuculi

The Story

Plant Bio

A perennial with attractive pink flowers and a preference for moist environments.

Commonly known as cuckoo flower, it thrives in wet meadows and is notable for its delicate, fringed petals.

Uses & Benefits:

Lychnis flos-cuculi offers charming, airy flowers that brighten perennial borders and attract pollinators, adding visual interest and ecological value.

Its resilient nature makes it a low-maintenance choice for naturalistic gardens and wildflower meadows.

Provides nectar for butterflies and bees, supporting local biodiversity.

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Europe and Asia

Toxicity

Non-toxic

Planting

How to Grow

Tuck seeds into moist soil in early spring for best germination.
Water regularly to keep soil evenly moist during the growing season.
Prune back after flowering to encourage bushier growth and remove dead stems.
Fertilize with a balanced, slow-release fertilizer in spring and mid-summer.
Divide clumps every 2-3 years in early spring or fall for vigorous growth.
Mulch around plants to retain moisture and suppress weeds.

Pro Tip

Plant in well-drained soil with partial sun for optimal flowering and health.

Keep It Thriving

Care Guide

Do

Water consistently to keep soil moist 🌱
Deadhead spent flowers to promote prolonged blooming
Apply organic compost annually for healthy growth
Mulch to conserve moisture and control weeds
Fertilize in early spring with a balanced fertilizer

Don't

Avoid overwatering to prevent root rot ❌
Don’t prune late in the season to avoid cutting off next year’s buds
Refrain from planting in poorly drained soil
Don’t ignore pest signs or disease symptoms
Avoid excessive fertilization which can lead to weak stems

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Mulch
Plant
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Airy perennial borderWildflower meadowButterfly-friendly garden

Companion Plants

Echinacea Coreopsis RudbeckiaLavender Gaillardia

Multiply

Propagation Methods

Good to Know

Common Questions

Ragged-robin questions

What zones can Ragged-robin grow in?

Ragged-robin is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Ragged-robin deer resistant?

Yes — Ragged-robin is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Ragged-robin bloom?

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

Does Ragged-robin need full sun?

Ragged-robin does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.