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Amberboa moschata 'Imperialis Graciosa' (Imperialis Series) (Sweet sultan 'Imperialis Graciosa')
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1 hour care
per year
per year
0.6m
Max height
Max height
0.3m
Max spread
Max spread
1-2 years
To maturity
To maturity
Plant details
Botanical name
Amberboa moschata 'Imperialis Graciosa' (Imperialis Series)
Other names
Sweet sultan 'Imperialis Graciosa', Sultan flower 'Imperialis Graciosa', Centaurea moschata 'Imperialis Graciosa', Amberboa moschata 'Graciosa'
Genus
Amberboa Amberboa
Variety or Cultivar
'Imperialis Graciosa' _ 'Imperialis Graciosa' is a branching annual or biennial with elliptic, grey-green basal leaves. Erect stems bear pinnate or deeply lobed stem leaves and fragrant, fringed, thistle-like, lilac-pink flowers from late spring into summer.
Amberboa moschata 'Imperialis Graciosa' (Imperialis Series) is: Deciduous
Habit
Branching, Erect
Flower
Lilac-pink in Spring; Lilac-pink in Summer
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Pests
Generally pest free
Powdery mildew Powdery mildew
General care
Pruning
Deadhead to prolong the flowering season and to prevent unwanted seedlings. Remove at the end of the growing season.
Propagation
Sow seed in situ or in a cold frame in spring. Seed can be sown in autumn but young plants need to be kept under glass over winter in cold areas.
Propagation methods
Seed
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Where to grow
Amberboa moschata 'Imperialis Graciosa' (Imperialis Series) (Sweet sultan 'Imperialis Graciosa') will reach a height of 0.6m and a spread of 0.3m after 1-2 years.
Suggested uses
Coastal, Flower Arranging, Beds and borders, Containers, Wildflower, Wildlife
Cultivation
Grow in well-drained, moderately fertile, neutral to alkaline soil in a sheltered, sunny site. Best sown in situ as it resents root disturbance. May require staking.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
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
Amberboa moschata 'Imperialis Graciosa' (Imperialis Series)
Other names
Sweet sultan 'Imperialis Graciosa', Sultan flower 'Imperialis Graciosa', Centaurea moschata 'Imperialis Graciosa', Amberboa moschata 'Graciosa'
Genus
Amberboa Amberboa
Variety or Cultivar
'Imperialis Graciosa' _ 'Imperialis Graciosa' is a branching annual or biennial with elliptic, grey-green basal leaves. Erect stems bear pinnate or deeply lobed stem leaves and fragrant, fringed, thistle-like, lilac-pink flowers from late spring into summer.
Native to
Garden origin
Foliage
Deciduous
Habit
Branching, Erect
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Colour
Flower
Lilac-pink in Spring; Lilac-pink in Summer
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Pests
Generally pest free
Specific diseases
General care
Pruning
Deadhead to prolong the flowering season and to prevent unwanted seedlings. Remove at the end of the growing season.
Propagation
Sow seed in situ or in a cold frame in spring. Seed can be sown in autumn but young plants need to be kept under glass over winter in cold areas.
Propagation methods
Seed
Monthly care advice
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Where to grow
Amberboa moschata 'Imperialis Graciosa' (Imperialis Series) (Sweet sultan 'Imperialis Graciosa') will reach a height of 0.6m and a spread of 0.3m after 1-2 years.
Suggested uses
Coastal, Flower Arranging, Beds and borders, Containers, Wildflower, Wildlife
Cultivation
Grow in well-drained, moderately fertile, neutral to alkaline soil in a sheltered, sunny site. Best sown in situ as it resents root disturbance. May require staking.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
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, Zone 5, Zone 4, Zone 3
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: | Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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