Arctotis acaulis

Arctotis acaulis L., commonly known as a type of African daisy, belongs to the Asteraceae family. It is a perennial herbaceous plant native to South Africa, which is often grown as an annual in regions with temperate climates due to its lack of frost hardiness.

The plant originates from the arid regions of Southern Africa. Its natural habitat is characterized by nutrient-poor, sandy soils and high sun exposure, which has shaped its physiological resilience and ability to thrive in xerophytic garden conditions.

Botanically, the species is distinguished by its basal rosette of silvery, deeply lobed leaves covered in fine hairs. The flowers are large, daisy-like composite inflorescences with a dark central disc. A key behavioral trait of the plant is that its flowers close during overcast weather or at night, reacting directly to light levels.

Successful cultivation requires full sun and well-draining, sandy soil. The plant is highly sensitive to root rot caused by waterlogging, so irrigation must be precise, and the soil must be light and breathable to ensure healthy root development.

In terms of agricultural and horticultural use, Arctotis acaulis is highly valued for landscaping, particularly in xeriscaping or rock gardens. Maintenance involves keeping the plant free from pests like aphids and spider mites, and ensuring that environmental conditions remain dry enough to prevent grey mold and fungal pathogens.