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Care of the plant Oxalis triangularis or Purple shamrocks.

Care of the plant Oxalis triangularis or Purple shamrocks

The genus Oxalis, family Oxalidaceae, comprises 600 species of herbaceous plants native to temperate and warm regions of almost all continents. Some species are: Oxalis triangularis, Oxalis pes-caprae, Oxalis gigantea, Oxalis flava, Oxalis corniculata, Oxalis bowiei, Oxalis articulata, Oxalis purpurea, Oxalis acetosella, Oxalis rosea.

Common names: Purple shamrocks, False shamrock. This species is native to southern South America.

They are small rhizomatous herbaceous plants of very fast growth that reach 20 cm (7.87") in height. They have leaves with three triangular leaflets that open or fold as light falls (like the wings of a butterfly). These leaves can be green or purple in color. The flowers are small, hanging and white or pink in color.

They are used in pots and planters as indoor plants, greenhouses, and for terraces and patios. Planting them in the garden is not recommended because they tend to be invasive.

Oxalis triangularis grows in full sun or semi-shade exposure. They do not resist temperatures higher than 30 ºC (86 ºF) or lower than 5 ºC (41 ºF); in winter it should rest at 10 ºC (50 ºF).

They can grow in any type of soil but prefer a well-drained substrate that contains organic matter.

Water regularly without letting the substrate dry completely (never flood). In winter there is no need to water.

Fertilize monthly with low nitrogen mineral fertilizer.

They do not need pruning; when the plant withers, the dry parts are removed and the tubers are left buried; they will sprout again in spring.

They are plants resistant to pests and diseases.

They are propagated by division of rhizomes planted in early spring.

Images of the plant Oxalis triangularis or Purple shamrocks

Oxalis triangularis
Oxalis triangularis