Intermediate
skill rating
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Senna oligophylla (Outback cassia)
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1 hour care
per year
per year
1.5m
Max height
Max height
1.5m
Max spread
Max spread
10-20 years
To maturity
To maturity
Plant details
Botanical name
Senna oligophylla
Other names
Outback cassia, Limestone cassis, Oval-leaf cassia, Cassia oligophylla, Senna artemisioides subsp. oligophylla
Genus
Senna Senna
Species
S. oligophylla - S. oligophylla is a tender, bushy, rounded to spreading, evergreen shrub with pinnate leaves divided into four lance-shaped, grey-green leaflets and bright yellow flowers from late winter to early spring. Flowers are followed by elongated, flat, green seed pods ripening brown.
Senna oligophylla is: Evergreen
Habit
Rounded, Bushy, Spreading
Flower
Bright-yellow in Spring; Bright-yellow in Winter
Foliage
Grey-green in All seasons
How to care
Watch out for
Diseases
Generally disease-free.
General care
Pruning
Pruning group 1.
Propagation
Sow seed at 18-24C (64-75F) in spring.
Propagation methods
Seed, Semi-ripe cuttings
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Where to grow
Senna oligophylla (Outback cassia) will reach a height of 1.5m and a spread of 1.5m after 10-20 years.
Suggested uses
Mediterranean, Drought Tolerant, Cottage/Informal, Containers, City, Beds and borders, Wallside and trellises
Cultivation
Outdoors in mild climates, grow in moderately fertile, moist but well-drained soil in sun. Drought tolerant once established. May drop older leaves in winter or drought. 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.
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), Indoor heated (H1)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Senna oligophylla
Other names
Outback cassia, Limestone cassis, Oval-leaf cassia, Cassia oligophylla, Senna artemisioides subsp. oligophylla
Genus
Senna Senna
Species
S. oligophylla - S. oligophylla is a tender, bushy, rounded to spreading, evergreen shrub with pinnate leaves divided into four lance-shaped, grey-green leaflets and bright yellow flowers from late winter to early spring. Flowers are followed by elongated, flat, green seed pods ripening brown.
Native to
Australia
Foliage
Evergreen
Habit
Rounded, Bushy, Spreading
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Colour
Flower
Bright-yellow in Spring; Bright-yellow in Winter
Foliage
Grey-green in All seasons
How to care
Watch out for
Diseases
Generally disease-free.
General care
Pruning
Pruning group 1.
Propagation
Sow seed at 18-24C (64-75F) in spring.
Propagation methods
Seed, Semi-ripe cuttings
Monthly care advice
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Where to grow
Senna oligophylla (Outback cassia) will reach a height of 1.5m and a spread of 1.5m after 10-20 years.
Suggested uses
Mediterranean, Drought Tolerant, Cottage/Informal, Containers, City, Beds and borders, Wallside and trellises
Cultivation
Outdoors in mild climates, grow in moderately fertile, moist but well-drained soil in sun. Drought tolerant once established. May drop older leaves in winter or drought. 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.
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), Indoor heated (H1)
USDA zones
Zone 11, Zone 10, Zone 9
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), Indoor heated (H1) | Tell us... |
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