An annual plant with a rewarding flowering season in countless colours.
Portulaca grandiflora (Moss-rose Purslane or Moss-rose) is a flowering plant of the Portulacaceae family, native to Argentina, southern Brazil and Uruguay.
It is a small but fast-growing annual plant growing to 30 cm tall, though usually less. The leaves are thick and fleshy, up to 2.5 cm long, arranged alternately or in small clusters. The flowers are 2.5–3 cm diameter with five petals, variably red, orange, pink, white and yellow.
It is widely grown in temperate climates as an ornamental plant for annual bedding or as a container plant. It requires ample sunlight and well-drained soils.
Numerous cultivars have been selected for double flowers with additional petals.
References : Wikipedia
Here is a collection of the hybrids i grow.