This globular dull green cactus has a swollen root system and has 14 to 18 rounded ribs that are divided into warts, each with several long curved greyish spines. The pinkish funnel-shape flowers appear towards the centre of the plant during summer. 

Hardiness zones 9 to 11 

Gymnocalycium hossei is naturally found in South America growing in Argentina (Cordoba) on rocky hillsides and grasslands from sea level to an altitude of 1000 m (3,300ft). 

It prefers a in semi shaded open positions and grows in well drained, sandy-stony moderately fertile soils and requires moisture during summer with a dry winter and is drought and light frost tolerant. 

This Chin Cactus is grown for its rounded habit and flowers.  It is planted in semi-shaded rockeries or cactus gardens and as a potted specimen plant, under glass in cold climates.  It is suitable for coastal and low mountain regions establishing in 3-5 years and is long lived. ID 2080

Gymnocalycium (gim-nō-ka-LI-kee-um) hossei  (HOS-see-eye)

Cactaceae (kak-TAY-see-ee)