perennial

Fern-leaf Corydalis

Corydalis cheilanthifolia

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Perennial

Height

12 inches

Width

8 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8

Water

Moist but well-drained

Humidity

Moderate

Lifespan

Perennial

Native To

East Asia

Toxicity

Toxic if ingested

The Story

Plant Bio

Corydalis cheilanthifolia is a perennial herbaceous plant known for its delicate, fern-like foliage and spikes of small, bright yellow, tubular flowers that bloom in late spring. This species is appreciated for its finely divided leaves that resemble fern foliage, and it tends to thrive in shaded, woodland garden settings with well-drained soil.

Bloom Period:

EarlyLate

Uses & Benefits:

Provides delicate foliage and charming purple flowers in shaded gardens.

Prefers moist, well-drained soil, reducing the need for frequent watering once established.

Attracts beneficial insects and pollinators to shaded garden areas.

Marketplace

Where to Buy

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Planting

How to Grow

Tuck seeds into moist soil in early spring
Keep soil consistently moist during growth
Place in partial shade for best results
Water regularly, especially in dry periods
Mulch to retain soil moisture
Divide clumps every 2-3 years in early spring

Pro Tip

Ensure soil stays moist and provide partial shade for optimal growth

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Mulch to conserve moisture
Divide every few years for rejuvenation

Don't

Avoid dry, sunny locations ❌
Don’t let soil dry out completely
Avoid heavy, poorly drained soils

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shaded woodland borderMoist shady garden corner

Companion Plants

Ferns Hostas Astilbes Heucheras

Multiply

Propagation Methods

Good to Know

Common Questions

Fern-leaf Corydalis questions

What zones can Fern-leaf Corydalis grow in?

Fern-leaf Corydalis 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 Fern-leaf Corydalis deer resistant?

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

When does Fern-leaf Corydalis bloom?

Fern-leaf Corydalis typically blooms in late spring through mid-spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Fern-leaf Corydalis need full sun?

Fern-leaf Corydalis does best in part shade.