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Glaucium corniculatum (Red horned poppy)
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1 hour care
per year
per year
0.4m
Max height
Max height
0.4m
Max spread
Max spread
1-2 years
To maturity
To maturity
Low
Toxicity
Toxicity
Plant details
Botanical name
Glaucium corniculatum
Other names
Red horned poppy, Glaucium phoenicium, Blackspot hornpoppy, Blackspot horn poppy, Red horned-poppy, Glaucium flavum red-flowered
Genus
Glaucium Glaucium
Species
G. corniculatum - G. corniculatum is a rosette-forming, slightly hairy, biennial, often grown as an annual, with finely-divided, silvery grey-green leaves and, from summer into autumn, crimson to orange-red flowers with a black spot at the base of each petal.
Glaucium corniculatum is: Deciduous
Habit
Rosette, Erect flower stem
Toxicity
Roots are toxic if ingested. Prolonged contact may cause skin irritation. If using as an external herbal application, use with caution and only on unbroken skin.
Flower
Crimson, Orange-red in Summer
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Diseases
Generally disease free.
General care
Pruning
If desired, cut back to the base in late autumn or winter. Deadhead to prevent unwanted seedlings.
Propagation methods
Seed
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Where to grow
Glaucium corniculatum (Red horned poppy) will reach a height of 0.4m and a spread of 0.4m after 1-2 years.
Suggested uses
Beds and borders, Cottage/Informal, Gravel, Rock, Wildflower, Woodland
Cultivation
Grow in poor to moderately fertile soil in sun. Resents root disturbance. Does not tolerate shade or poorly-drained conditions.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
North, 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
Glaucium corniculatum
Other names
Red horned poppy, Glaucium phoenicium, Blackspot hornpoppy, Blackspot horn poppy, Red horned-poppy, Glaucium flavum red-flowered
Genus
Glaucium Glaucium
Species
G. corniculatum - G. corniculatum is a rosette-forming, slightly hairy, biennial, often grown as an annual, with finely-divided, silvery grey-green leaves and, from summer into autumn, crimson to orange-red flowers with a black spot at the base of each petal.
Native to
Europe, Southwestern Asia
Foliage
Deciduous
Habit
Rosette, Erect flower stem
Toxicity
Roots are toxic if ingested. Prolonged contact may cause skin irritation. If using as an external herbal application, use with caution and only on unbroken skin.
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Colour
Flower
Crimson, Orange-red in Summer
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Diseases
Generally disease free.
General care
Pruning
If desired, cut back to the base in late autumn or winter. Deadhead to prevent unwanted seedlings.
Propagation methods
Seed
Monthly care advice
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Where to grow
Glaucium corniculatum (Red horned poppy) will reach a height of 0.4m and a spread of 0.4m after 1-2 years.
Suggested uses
Beds and borders, Cottage/Informal, Gravel, Rock, Wildflower, Woodland
Cultivation
Grow in poor to moderately fertile soil in sun. Resents root disturbance. Does not tolerate shade or poorly-drained conditions.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
North, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 10, 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, Loamy, Sandy | Tell us... |
| Soil drainage: | Well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | North, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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