Portulaca grandiflora which is commonly called moss-rose purslane or moss-rose, is a flowering plant in the family Portulacaceae. Portulaca grandiflora has a flatter leaf than the nearly cylindrical leaf of the Portulaca oleracea. They are low-growing spreaders with thick succulent stems and vibrant, cup-shaped flowers. Flowers come in a wide range of colors: red, orange, pink, yellow, white, rose and apricot.
Freezing temperatures knock plants to the ground in more northern areas, but self-seeded plants may come up the following year. A sunny growing area and a light soil give the best growth. The plants are spaced 10 to 12 inches apart to form a tight ground cover several months after planting. The flowers of some varieties close at night and on cloudy days.
It is a small, but fast-growing annual plant growing to 30 cm tall, though usually less. However if it is cultivated properly it can easily reach this height. 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. Numerous cultivars have been selected for double flowers with additional petals, and for variation in flower color.
Yubi Portulaca is exceptionally drought tolerant and needs very little if any care to grow. Yubi Portulaca can be planted as a solo or mixed with other exceptionally drought tolerant plants in beds, containers, hanging baskets and the rock garden. Especially, it is eye-catching when planted in mass.