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Care of the plant Senna corymbosa or Argentine senna.

Care of the plant Senna corymbosa or Argentine senna

The genus Senna, family Fabaceae, comprises 250 species of shrubs and trees native to temperate regions of all continents (especially South America and Australia). Many species of the genus Cassia are included in this genus. Some species are: Senna corymbosa, Senna artemisioides, Senna didymobotrya, Senna spectabilis, Senna multiglandulosa, Senna sturtii, Senna candolleana.

Common names: Argentine senna, Buttercup bush, Tree senna, Texas flowery senna. This species is native to Argentina, Brazil and Uruguay.

They are semi-perennial or perennial shrubs (they lose leaves if it's very cold) and have a rounded bearing that reach 2 meters in height. The dark green, pinnate and alternate leaves are oval and have the peculiarity of folding in on themselves at night. The abundant and showy yellow 5-petal flowers bloom in summer and the first half of fall. They produce pod-shaped fruits.

They are used in bushy bushy groups, as isolated specimens and in pots as a small tree.

Senna corymbosa needs full sun exposure and warm temperatures. They resist frosts down to -8 ºC. They can grow in gardens by the sea.

They are plants that adapt to any type of soil that is well drained, even calcareous soils.

Water regularly but with little amount of water waiting for the soil to dry out; they are drought resistant plants.

Fertilize in fall with compost or manure.

Prune in early spring 50 cm above the ground to maintain a more rounded appearance.

They can be attacked by aphids and mealybugs.

They are propagated from seeds sown in spring or by cuttings in summer.

Images of the plant Senna corymbosa or Argentine senna

Senna corymbosa
Senna corymbosa
Senna corymbosa
 

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