Annual plant with a height of 15-20 cm. Flowers are 2-3 cm in diameter, black in color with a white border on the edge of the petals. They are grown by sowing seeds in open ground, sometimes through seedlings. The plant is shade tolerant, prefers loose calcareous soils. In dry weather, watering is necessary. It blooms from June to autumn. It is used for framing flowerbeds and borders, as well as for the decoration of balcony boxes.