[1] The features of the species include a large flower, with sharply pointed lavender or white petals, and a sweet scent.

Plants produce white, lavender or pale red flowers that open at night.

[2][3] Echinopsis oxygona, native to Southern Brazil, Uruguay, Paraguay and Entre Ríos Province, Argentina, thrives in lowland environments, reaching altitudes of up to 1,000 meters above sea level.

In these areas, there is a tropical and continental climate, characterized by arid winters and humid summers.

[4] Echinopsis oxygona is known for having huge, showy flowers at the ends of long tubes which are connected to the cactus.

In cultivation in the UK this plant has received the Royal Horticultural Society's Award of Garden Merit.