Argentine senna - Senna corymbosa (Care, Characteristics, Flower, Images)

Argentine senna

Also known as: Argentina senna, Texas flowery senna, Autumn cassia

Argentine senna (Senna corymbosa) is an evergreen shrub that will grow from 2.5 to 3 m tall. It blooms in spring with showy yellow flowers. Thrives in full sun and well-drained soil. It is heat and drought-tolerant and grows well as a hedge or border plant especially in warm climates. spring become invasive in some areas.

Scientific classification

Species

Argentine senna (Senna corymbosa)

Legumes, milkworts and allies

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Perennial

Lifespan

Tree, Shrub

Plant Type

Mid spring, Late spring, Summer, Fall

Bloom Time

Winter

Harvest Time

1 m

Plant Height

1.2 m to 1.8 m

Spread

Green

Stem Color

Evergreen

Leaf type

5 - 35 ℃

Ideal Temperature

Images of Argentine senna

Distribution of Argentine senna

Distribution Map

Argentine senna is native to South America, particularly the southern cone region. Its distribution has expanded through cultivation, and it is now found across various continents such as Asia, Africa, North America, Europe, and Oceania. As a cultivated species, argentine senna thrives in a multitude of environments, thereby establishing itself well beyond its indigenous range.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Disturbed upland

Hemisphere Trend Curve

Northern

Sorthern

Culture

Name Story

Argentine senna: The genus name of argentine senna, which is senna, comes from the Arabic word, sanā. Sanā describes a group of plants whose leaves or pods have laxative properties. Argentine refers to the plant’s origin: Argentina. Argentine senna is also known as Senna corymbosa.

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Care Guide for Argentine senna

Every 1-2 weeks

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Thriving in subtropical climates, argentine senna exhibits moderate drought tolerance and prefers deep, infrequent watering every 1-2 weeks. It thrives in full sun, particularly in warmer regions, leveraging natural rain with supplemental irrigation during prolonged dry spells.

Fertilize: For optimal growth, argentine senna requires balanced fertilizers every 6-8 weeks during the growing season. Proper application enhances vigor and blooms while preventing root damage. Dilute to half-strength, water before and after, and reduce frequency in winter to support different growth stages.

Pruning: Argentine senna is valued for its bright yellow flowers and fern-like leaves. Prune during early to late winter by removing dead branches, shaping, and thinning for better air circulation. Regular pruning promotes bushier growth and more flowers. Use sterilized tools to prevent disease.

Propagation: Propagating argentine senna using stem cuttings is effective. Choose healthy semi-hardwood segments, dip in rooting hormone, and use a well-draining, moist substrate. Maintain humidity and warmth for optimal rooting, which usually occurs within weeks, followed by gradual acclimatization before transplanting.

Repotting: Repot argentine senna in spring every 2-3 years to support its growth. Use a container one size larger and provide well-draining soil with consistent moisture post-repot. Adequate space and timely repotting promote health and vibrant blooms.

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