
Ragged-robin
Lychnis flos-cuculi
Not currently listed at our partner nurseries.
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
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.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
Shipping costs Year-round shipping Free shipping
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
Companion Plants
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.
More Lychnis to compare

Petite Jenny Ragged Robin
Lychnis flos-cuculi 'Petite Jenny'

Lychnis x arkwrightii Orange Zwerg
Lychnis x arkwrightii 'Orange Zwerg'

Cuckoo Flower
Lychnis flos-cuculi 'Petite Henri'

Siebold's Campion
Lychnis sieboldii

Rose Campion
Lychnis atrosanguinea

Maltese Cross
Lychnis chalcedonica
