Species

Lychnis flos-cuculiRagged-robin

1 other cultivar

‘Petite Jenny’Petite Jenny Ragged Robin

perennial

Cuckoo Flower

Lychnis flos-cuculi 'Petite Henri'

The Story

Plant Bio

Lychnis flos-cuculi 'Petite Henri' is a compact perennial with finely divided, fern-like foliage and clusters of vibrant, fringed pink flowers that bloom in summer, creating a delicate yet striking display.

This cultivar is distinguished by its compact size and abundant flowering, making it ideal for borders and containers where space is limited.

Uses & Benefits:

Provides vibrant pink blooms that attract pollinators, enhancing garden beauty.

Easy to grow and maintain, suitable for low-maintenance gardens.

Supports bees and butterflies, promoting local biodiversity.

SpeciesLychnis flos-cuculiRagged-robin

Essentials

At a Glance

Plant Type

Perennial

Height

14 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average garden humidity

Lifespan

Perennial

Native To

Europe and Asia

Toxicity

Mildly toxic if ingested

Bloom period

Late spring – Early summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds on the soil surface in early spring
Keep soil consistently moist during growing season
Provide full sun for best flowering
Apply a balanced fertilizer in spring
Deadhead spent flowers to encourage rebloom
Divide every 3-4 years for vigorous growth

Pro Tip

Ensure well-draining soil and full sun for optimal blooms.

Keep It Thriving

Care Guide

Do

Water regularly during dry spells 🌱
Deadhead to promote continuous flowering
Mulch to retain soil moisture

Don't

Avoid overwatering to prevent root rot ❌
Don’t fertilize in late fall
Avoid heavy shade which reduces flowering

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Wildflower meadow with pink accentsInformal border with native plantsPollinator-friendly garden

Companion Plants

EchinaceaLavender Salvia Coreopsis Gaillardia

Multiply

Propagation Methods

Good to Know

Common Questions

Cuckoo Flower questions

What zones can Cuckoo Flower grow in?

Cuckoo Flower 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 Cuckoo Flower deer resistant?

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

When does Cuckoo Flower bloom?

Cuckoo Flower 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 Cuckoo Flower need full sun?

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