Overview

Corydalis nobilis is a clump forming herbaceous perennial in the genus Corydalis, part of the Papaveraceae family, with deciduous, evergreen foliage. Corydalis nobilis grows best in partial shade, and tolerates loam soils and any pH. Its UK hardiness is rated H5. Suggested uses include rock garden, patio and container plants, cottage and informal garden, flower borders and beds and underplanting of roses and shrubs.

About

Corydalis nobilis, the Siberian corydalis, is a perennial plant native to Siberia, Xinjiang and Kazakhstan. It was introduced to Europe by Linnaeus, who had asked his friend Erich Laxmann for seeds of Lamprocapnos spectabilis (old-fashioned bleeding heart), but was sent seeds of C. nobilis instead. Both Lamprocampnos and Corydalis are members of the family Papaveraceae, with seeds having an attached elaiosome that makes them attractive to ants, which disperse the seeds. In the garden it prefers partial shade and loam soil. In UK gardens it is hardy in most of the UK (RHS H5). Suggested uses include rock garden, patio and container plants, cottage and informal garden, flower borders and beds and underplanting of roses and shrubs. It tolerates soil of any pH, moist but well-drained conditions and east-facing, north-facing, south-facing and west-facing aspects. Plant out after last frost in fertile, well-drained soil.

Wikipedia contributors, CC BY-SA 4.0Corydalis nobilis

About the genus

Corydalis is a genus of about 540 species of annual and perennial herbaceous plants in the family Papaveraceae, native to the temperate Northern Hemisphere and the high mountains of tropical eastern Africa. They are most diverse in China and the Himalayas, with at least 357 species in China. Corydalis species are the only dicots having only a single cotyledon.

Wikipedia contributors, "Corydalis", CC BY-SA 4.0Corydalis

Growing conditions

Best soil and position for Corydalis

Sunlight
Partial shade
Soil type
Loam
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
East-facing, North-facing, South-facing, West-facing
Exposure
Exposed, Sheltered
UK hardiness
H5

Plant details

Corydalis nobilis size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Clump forming
Foliage
Deciduous, Evergreen
Suggested uses
Rock garden, Patio and container plants, Cottage and informal garden, Flower borders and beds, Underplanting of roses and shrubs

Care notes

Pruning and caring for Corydalis nobilis

Propagation
Division, Seed sown as soon as ripe
Pest resistance
Slugs, Snails
Disease resistance
Generally disease-free

Frequently asked questions

Where is the best place to plant Corydalis nobilis?

Corydalis nobilis prefers partial shade. It suits exposed and sheltered positions.

What soil does Corydalis nobilis need?

Corydalis nobilis grows best in loam soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Corydalis nobilis hardy in the UK?

Corydalis nobilis has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Corydalis nobilis?

Division, Seed sown as soon as ripe.

More in the Corydalis genus

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