This genus of clumping cacti varies in growth from a ribbed rounded habit to columnar with age and have spines arranged along the ribs. The yellow to orange tube-shaped flowers appear solitary from the top of the plant from spring to summer. 

Hardiness zones 10 to 11

Parodia species are naturally found in South America growing in well drained moderately fertile gritty soils in an open sunny position and are drought tolerant but frost tender. 

Ball Cactus are grown for their rounded habit and bright flowers. They are grown as a specimen in arid gardens and commonly associated with rock out crops or stones or used as potted specimen plants. They established in 3-5 years from division and are suitable for coastal or inland regions. If temperatures fall below 16º C place in glasshouse or protected area. ID 442

Note:
This genus was previously known as  Notocactus.

Parodia (par-ROH-dee-uh) species

Cactaceae (kak-TAY-see-ee)