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Silver Senna

How to identify Silver Senna (Senna artemisioides)

Silver Senna, also known as Silver Cassia

Silver Senna is characterized by its evergreen nature and feathery, light gray-green pinnate leaves, or phyllodes, giving it a delicate appearance. It exhibits a rounded form typically ranging from 4 to 6 feet tall (120 to 180 cm) with clusters of fragrant, yellow, pea-like flowers that bloom with a peak from late winter to spring. The plant's fruiting phase includes flattened pea pods that transition from lime green to dark brown. This shrub thrives in full sun and well-draining soil conditions, with occasional to sparse watering needs, highlighting its drought tolerance. Leaves are comparatively small, which can be informally pruned after flowering has occurred.

Lifespan

Lifespan: Perennial

Plant Type

Plant Type: Shrub

Leaf Type

Leaf Type: Evergreen

Quickly Identify Silver Senna

1

Feathery, light gray-green pinnate leaves create delicate appearance.

2

Clusters of fragrant, yellow, pea-like flowers bloom in late winter to spring.

3

Fruiting phase includes lime green to dark brown flattened pea pods.

4

Thrives in full sun with well-draining soil, showcasing drought tolerance.

5

Rounded form reaches 4-6 feet tall (120-180 cm), requiring sparse watering.

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Silver Senna and Their Similar Plants

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Sicklepod vs. Silver Senna: What's The Difference?
The sicklepod (Senna obtusifolia) grows best in full sun and moist soil. It thrives in rocky dirt and nutrient-rich soil. For an annual plant, it's slow to develop and grows best late in its growing season.
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Coffee senna vs. Silver Senna: What's The Difference?
Coffee senna (*Senna occidentalis*) is a perennial shrub that prefers warm and humid environments. It is sometimes considered an invasive weed that grows in open woodlands, waste areas, and roadsides. It blooms in spring with yellow flowers, followed by brown fruit in late summer and early fall. Seeds can be used as a coffee substitute, although it does not contain caffeine.
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Christmas bush vs. Silver Senna: What's The Difference?
Formerly known as Senna bicapsularis, but more commonly called the christmas bush, this attractive evergreen shrub can grow quite large. It features sunny yellow blooms that appear late in the fall and last through the frost.
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Wild senna vs. Silver Senna: What's The Difference?
A versatile member of the legume species, wild senna features clusters of yellow-orange flowers, seed pods, and foliage that changes color in the fall. It once grew wild throughout the Northeastern United States but is now in a protected status. The seed pods are an important food source for the white bob bird, and bees find its pollen particularly attractive.
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Maryland senna vs. Silver Senna: What's The Difference?
The foliage of maryland senna(Senna marilandica) gives off a malodorous scent when it's ground up. Because of the unpleasant taste, this species is usually ignored by deer.
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Golden wonder tree vs. Silver Senna: What's The Difference?
Golden wonder tree is a deciduous tree with a height ranging from 2 to 15 m, fast-growing with a leafy canopy.
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Key Facts About Silver Senna

Attributes of Silver Senna
Plant Type
Shrub
Plant Height
3 m
Spread
2 m
Leaf Color
Green
Gray
Silver
Flower Size
2.5 cm
Flower Color
Yellow
Fruit Color
Green
Brown
Stem Color
Green
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Scientific Classification of Silver Senna

Family
Legume
Icon allow
Genus
Sennas
Icon allow
Species
Silver Senna (Senna artemisioides)
Learn More About the Silver Senna

Distribution Map of Silver Senna

Silver Senna is native to arid and semi-arid regions of the Southern Hemisphere, particularly in Australasia. It has been introduced to various parts of the world, adapting to regions with Mediterranean and subtropical climates. The species is cultivated in areas beyond its natural range, thriving in a variety of non-native environments.
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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