Corydalis 'Blue Heron'Corydalis 'Blue Heron'

Corydalis ‘Blue Heron’

Our darkest blooming Corydalis features the largest flowers in our collection! Dark gentian-blue flowers float atop stunning red stems and are enhanced by the blue green foliage. This form bloomed all spring and summer for us in Oregon. A marvelous Corydalis collected in Sichuan, China by Mr. Dan Hinkley. Will go summer dormant if it is kept too dry or hot.

USDA Hardiness Zone(s): 6-8
Size (HT/W/FL HT): 8″ / 10″ / 9″
Exposure: Part Shade, Full Shade
Bloom Time(s): May, June, July

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Common Name






curviflora var. rosthornii

Plant Type



US Patent #

EU Grant #

Hardiness Zone

, ,

Growth Habit

Size (HT/W/FL HT)

8" / 10" / 9"

Finish Time

Bloom Time

, ,

Growth Rate

Most Active Growing Season

Flowering Season


Flower Color

Leaf Color



Average, well-drained.


5.6 – 6.6



Special Uses

Nutritional Needs

50 ppm


Dormant in winter.

Water (Greenhouse)

Dry moderately between waterings.

Water (Garden)

Keep evenly moist, not wet.

How Different?

It has blue green rather than green leaves, and larger, darker blue flowers. It holds up better in the summer heat than the C. flexuosa types.

Landscape Value

Use in the shade garden, in a mass planting or edging, as an under-story plant in the woodland, or in a container.

Finish Time to 4"

6 – 8 weeks


Recommend transplanting to a 4" pot from a 72 cell size, not a larger size container.

Grower Notes

USE NO CHEMICALS ON CORYDALIS without prior experience.

Corydalis 'Blue Heron' - Product Profile
Corydalis 'Blue Heron' - Growing Recipe

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Please credit TERRA NOVA® Nurseries in the following matter:
Photo(s) courtesy of TERRA NOVA® Nurseries, Inc.

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