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Rudbeckia subtomentosa (Sweet coneflower)
1 hour care
per year
per year
1.5m
Max height
Max height
0.6m
Max spread
Max spread
1-2 years
To maturity
To maturity
Plant details
Botanical name
Rudbeckia subtomentosa
Other names
Sweet coneflower, Sweet black-eyed Susan
Genus
Rudbeckia Rudbeckia
Species
R. subtomentosa - R. subtomentosa is an upright, clump-forming, deciduous perennial with ovate to elliptic, toothed, dark green leaves, hairy beneath and basal leaves divided into three lobes. From midsummer to mid-autumn, sturdy, branched stems bear lightly fragrant, daisy-like, bright yellow flower with dark brown central cones.
Rudbeckia subtomentosa is: Deciduous
Habit
Cushion or Mound Forming, Bushy, Erect flower stem
Flower
Bright-yellow in Summer; Bright-yellow in Autumn
Foliage
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
How to care
Watch out for
General care
Pruning
Deadhead regularly. Cut back in late autumn or early spring.
Propagation methods
Division
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Where to grow
Rudbeckia subtomentosa (Sweet coneflower) will reach a height of 1.5m and a spread of 0.6m after 1-2 years.
Suggested uses
Flower Arranging, Cottage/Informal, Beds and borders, Low Maintenance, Prairie planting, Wildflower
Cultivation
Prefers moderately fertile, heavy, moist but well-drained soil in sun. Easily tolerates partial shade. Tolerates hot, humid summers and moderate drought. Best with good air circulation.
Soil type
Chalky, Clay, Loamy
Soil drainage
Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
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
Botanical name
Rudbeckia subtomentosa
Other names
Sweet coneflower, Sweet black-eyed Susan
Genus
Rudbeckia Rudbeckia
Species
R. subtomentosa - R. subtomentosa is an upright, clump-forming, deciduous perennial with ovate to elliptic, toothed, dark green leaves, hairy beneath and basal leaves divided into three lobes. From midsummer to mid-autumn, sturdy, branched stems bear lightly fragrant, daisy-like, bright yellow flower with dark brown central cones.
Foliage
Deciduous
Habit
Cushion or Mound Forming, Bushy, Erect flower stem
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Colour
Flower
Bright-yellow in Summer; Bright-yellow in Autumn
Foliage
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
General care
Pruning
Deadhead regularly. Cut back in late autumn or early spring.
Propagation methods
Division
Monthly care advice
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Where to grow
Rudbeckia subtomentosa (Sweet coneflower) will reach a height of 1.5m and a spread of 0.6m after 1-2 years.
Suggested uses
Flower Arranging, Cottage/Informal, Beds and borders, Low Maintenance, Prairie planting, Wildflower
Cultivation
Prefers moderately fertile, heavy, moist but well-drained soil in sun. Easily tolerates partial shade. Tolerates hot, humid summers and moderate drought. Best with good air circulation.
Soil type
Chalky, Clay, Loamy
Soil drainage
Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
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 8, Zone 7, Zone 6, Zone 5, Zone 4
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Rudbeckia subtomentosa (Sweet coneflower)
Rudbeckia subtomentosa (Sweet coneflower)
Rudbeckia subtomentosa (Sweet coneflower)
Rudbeckia subtomentosa (Sweet coneflower)
Rudbeckia subtomentosa (Sweet coneflower)
Rudbeckia subtomentosa (Sweet coneflower)
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy | Tell us... |
| Soil drainage: | Moist but well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Partial Shade, Full Sun | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
ARTICLES WITH THIS PLANT
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