Sunn hemp - Crotalaria juncea (Taxonomy, Characteristics, Flower, Images)

Sunn hemp

Also known as: Brown hemp, Benares hemp

Sunn hemp is a tropical plant in the legume family with pretty yellow blooms, originally found in India. It is often grown for its use as fodder and fiber; however, in some areas it is considered to be a noxious weed.

Scientific classification

Species

Sunn hemp (Crotalaria juncea)

Legumes, milkworts and allies

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Annual

Lifespan

Herb

Plant Type

Spring

Bloom Time

50 cm to 1 m

Plant Height

2 m

Spread

20 - 38 ℃

Ideal Temperature

Distribution of Sunn hemp

Distribution Map

Sunn hemp naturally thrives in tropical regions of South and Southeast Asia. Over time, it has been introduced to other tropical and subtropical areas across several continents including Africa, the Americas, and parts of Oceania. While not native, sunn hemp has adapted well to various climates and regions outside its indigenous range, signifying its ecological versatility.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Sparse forests, trailsides

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Sunn hemp

Every week

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Water: Originating from tropical regions, sunn hemp thrives in consistent moisture and warm conditions. It prefers weekly watering to maintain humidity, demonstrates moderate drought resistance, and is often grown outdoors in full sun. Sunn hemp also serves as a green manure crop, enhancing soil structure and fertility.

Fertilize: Fertilize sunn hemp quarterly with high-phosphorus fertilizer to enhance flowering and root growth, following label instructions. Avoid over-fertilization to prevent harm. Caution with synthetic fertilizers is essential to avert root burn. Regular fertilization promotes sunn hemp's vigor and resilience throughout its growing seasons.

Pruning: Sunn hemp grows rapidly and fixes nitrogen, benefiting from pruning in early to late spring. Trim dead branches and excessive growth to promote bushier foliage and enhance blooming. Sterilize tools to prevent disease. Consult agricultural extensions for detailed care guidance.

Propagation: Sunn hemp is a leguminous plant that improves soil health via nitrogen fixation. Propagate through sowing, using proper soil preparation and rhizobium treatment. Sow seeds shallowly for light exposure, ensure adequate moisture without overwatering, and thin plants as necessary to avoid overcrowding and support healthy growth.

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Distribution of Sunn hemp

Care Guide for Sunn hemp

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