Intermediate
skill rating
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Senna sturtii (Dense cassia)
1 hour care
per year
per year
2m
Max height
Max height
1.5m
Max spread
Max spread
10-20 years
To maturity
To maturity
Plant details
Botanical name
Senna sturtii
Other names
Senna artemisioides subsp. sturtii, Cassia sturtii, Dense cassia, Grey desert cassia, Senna artemisioides subsp. petiolaris
Genus
Senna Senna
Species
S. sturtii - S. sturtii is a rounded to spreading, evergreen shrub with pinnate leaves divided into linear or elliptic, mid-green leaflets and racemes of pea-like, yellow or yellow-orange flowers in early summer.
Senna sturtii is: Evergreen
Habit
Erect, Spreading
Flower
Yellow-orange, Yellow in Summer
Foliage
Grey-green in All seasons
How to care
Watch out for
Diseases
Generally disease-free.
General care
Pruning
Pruning group 1. May need restrictive pruning if grown under glass.
Propagation
Sow seed at 18-24C (64-75F) in spring.
Propagation methods
Semi-ripe cuttings, Seed
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Where to grow
Senna sturtii (Dense cassia) will reach a height of 2m and a spread of 1.5m after 10-20 years.
Suggested uses
Beds and borders, City, Containers, Cottage/Informal, Sub-Tropical, Wallside and trellises
Cultivation
Under glass, grow in loam-based compost in full light & moderately humidity. In growth, water moderately & feed monthly. Water sparingly in winter. Top dress or pot on in spring. Outdoors in mild, frost-free climates, grow in moderately fertile, moist but well-drained soil in sun. Tends to drop older leaves in winter or drought.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Tender in frost (H3)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Senna sturtii
Other names
Senna artemisioides subsp. sturtii, Cassia sturtii, Dense cassia, Grey desert cassia, Senna artemisioides subsp. petiolaris
Genus
Senna Senna
Species
S. sturtii - S. sturtii is a rounded to spreading, evergreen shrub with pinnate leaves divided into linear or elliptic, mid-green leaflets and racemes of pea-like, yellow or yellow-orange flowers in early summer.
Native to
Australia
Foliage
Evergreen
Habit
Erect, Spreading
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Colour
Flower
Yellow-orange, Yellow in Summer
Foliage
Grey-green in All seasons
How to care
Watch out for
Diseases
Generally disease-free.
General care
Pruning
Pruning group 1. May need restrictive pruning if grown under glass.
Propagation
Sow seed at 18-24C (64-75F) in spring.
Propagation methods
Semi-ripe cuttings, Seed
Monthly care advice
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Where to grow
Senna sturtii (Dense cassia) will reach a height of 2m and a spread of 1.5m after 10-20 years.
Suggested uses
Beds and borders, City, Containers, Cottage/Informal, Sub-Tropical, Wallside and trellises
Cultivation
Under glass, grow in loam-based compost in full light & moderately humidity. In growth, water moderately & feed monthly. Water sparingly in winter. Top dress or pot on in spring. Outdoors in mild, frost-free climates, grow in moderately fertile, moist but well-drained soil in sun. Tends to drop older leaves in winter or drought.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Tender in frost (H3)
USDA zones
Zone 12, Zone 11, Zone 10, Zone 9, Zone 8
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 | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, East | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Tender in frost (H3) | Tell us... |
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