The Story
Plant Bio
Corydalis flexuosa 'Porcelain Blue' is known for its delicate, finely dissected foliage and beautiful blue flowers that appear in early spring.
The cultivar 'Porcelain Blue' is particularly valued for its vibrant blue color and ability to thrive in shady areas.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
12 inches
Light
Partial Sun, Shade
Zones
5, 6, 7, 8
Water
Moderate
Humidity
Prefers moist, well-drained soil
Lifespan
Perennial
Native To
China
Toxicity
Toxic if ingested.
Bloom period
Mid-spring
In flower about 1 month of the year
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Mist cuttings regularly to maintain humidity and promote root growth.
- Water consistently, avoiding waterlogged soil during the growing season.
- Apply a balanced fertilizer every 4-6 weeks during active growth.
- Prune faded stems to encourage bushier growth and remove dead material.
- Mulch around plants to retain moisture and suppress weeds.
Pro Tip
Use a shade cloth during hot summer days to prevent leaf scorch and promote lush foliage.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist but not soggy 🌱
- Deadhead spent flowers to encourage continuous blooming
- Apply organic compost annually for healthy growth
Don't
- Avoid overwatering, which can lead to root rot ❌
- Don’t expose to harsh afternoon sun in summer
- Refrain from disturbing roots during dormancy
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Plant | ||||||||||||
| 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
Porcelain Blue Corydalis questions
What zones can Porcelain Blue Corydalis grow in?
Porcelain Blue Corydalis is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Porcelain Blue Corydalis deer resistant?
Yes — Porcelain Blue Corydalis is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Porcelain Blue Corydalis bloom?
Porcelain Blue Corydalis typically blooms in mid-spring through mid-spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Porcelain Blue Corydalis need full sun?
Porcelain Blue Corydalis does best in part shade.
More Corydalis to compare

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Corydalis elata

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Corydalis heterocarpa

'Berry Exciting' Corydalis
Corydalis anthriscifolia 'Berry Exciting'

Blue Corydalis
Corydalis flexuosa
Keep exploring
Explore the genus
Hardy in your zone?
Grow Porcelain Blue Corydalis 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.



