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Corydalis curviflora subsp. rosthornii 'Blue Heron' (Corydalis 'Blue Heron')
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1 hour care
per year
per year
0.25m
Max height
Max height
0.3m
Max spread
Max spread
3-5 years
To maturity
To maturity
Plant details
Botanical name
Corydalis curviflora subsp. rosthornii 'Blue Heron'
Other names
Corydalis 'Blue Heron', Fumewort 'Blue Heron', Corydalis flexuosa 'Blue Heron'
Genus
Corydalis Corydalis
Variety or Cultivar
'Blue Heron' _ 'Blue Heron' is a compact, clump-forming, summer-dormant, herbaceous perennial with deeply divided, often purple-flushed, grey-green leaves and upright stems bearing racemes of slender, tubular, fragrant, blue flowers in late spring and early summer.
Corydalis curviflora subsp. rosthornii 'Blue Heron' is: Deciduous
Habit
Compact, Clump-forming
Flower
Blue in Spring; Blue in Summer
Foliage
Grey-green in Spring; Grey-green in Autumn
How to care
Watch out for
Specific pests
Aphids , Slugs , Snails Aphids , Slugs , Snails
Diseases
Generally disease-free.
General care
Pruning
Cut back foliage in summer if untidy.
Propagation methods
Division, Seed
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Where to grow
Corydalis curviflora subsp. rosthornii 'Blue Heron' (Corydalis 'Blue Heron') will reach a height of 0.25m and a spread of 0.3m after 3-5 years.
Suggested uses
Rock, Garden edging, Cottage/Informal, Containers, Beds and borders, Underplanting, Wildflower, Woodland
Cultivation
Grow in moderately fertile, moist but well-drained soil in partial shade. Will usually go dormant in hot, dry summers. Water regularly in dry periods. Fairly new to cultivation so suitability over a range of climates & conditions is still uncertain.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained, Moisture-retentive
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Corydalis curviflora subsp. rosthornii 'Blue Heron'
Other names
Corydalis 'Blue Heron', Fumewort 'Blue Heron', Corydalis flexuosa 'Blue Heron'
Genus
Corydalis Corydalis
Variety or Cultivar
'Blue Heron' _ 'Blue Heron' is a compact, clump-forming, summer-dormant, herbaceous perennial with deeply divided, often purple-flushed, grey-green leaves and upright stems bearing racemes of slender, tubular, fragrant, blue flowers in late spring and early summer.
Foliage
Deciduous
Habit
Compact, Clump-forming
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Colour
Flower
Blue in Spring; Blue in Summer
Foliage
Grey-green in Spring; Grey-green in Autumn
How to care
Watch out for
Specific pests
Diseases
Generally disease-free.
General care
Pruning
Cut back foliage in summer if untidy.
Propagation methods
Division, Seed
Monthly care advice
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Where to grow
Corydalis curviflora subsp. rosthornii 'Blue Heron' (Corydalis 'Blue Heron') will reach a height of 0.25m and a spread of 0.3m after 3-5 years.
Suggested uses
Rock, Garden edging, Cottage/Informal, Containers, Beds and borders, Underplanting, Wildflower, Woodland
Cultivation
Grow in moderately fertile, moist but well-drained soil in partial shade. Will usually go dormant in hot, dry summers. Water regularly in dry periods. Fairly new to cultivation so suitability over a range of climates & conditions is still uncertain.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained, Moisture-retentive
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
| Soil drainage: | Moist but well-drained, Moisture-retentive | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Partial Shade | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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