Portulaca grandiflora is a flowering plant in the family Portulacaceae, native to Argentina, southern Brazil, and Uruguay and often cultivated in gardens. It has many common names, including moss-rose purslane, eleven o'clock, Mexican rose, moss rose, sun rose, and rock rose.
It is also seen in South Asia and widely spread in most of the cities with old 18th- and 19th-century architecture in the Balkans. In Bangladesh, it is called "time fuul", meaning "time flower", because the flower has a specific time to bloom. In India, it is called "nau bajiya" or "9 o'clock flower" as it blooms in morning around 9:00 am. In Vietnam, it is called "hoa mười giờ" meaning "ten o'clock flower", because the flower is usually in full bloom at 10:00 in the morning. Its buds are often chewed by small birds like the house sparrow.
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.
Cultivation and uses
Numerous cultivars have been selected for double flowers with additional petals, and for variation in flower color,  and 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. It requires almost no attention and spreads itself very easily. In places with old architecture it can grow between the stones of the road or sidewalk. Seeds are often sold as mixtures, such as Double Flowering Mixture (see illustrations).
Portulaca grandiflora, variety in Pakistan
Portulaca grandiflora in India
Traditional Brazilian sort of Portulaca grandiflora
Portulaca Grandiflora white variety in Pakistan
- Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
- Germplasm Resources Information Network: Portulaca grandiflora
- USDA GRIN Taxonomy, retrieved 8 April 2015
- Mitchell, H. (2003). The Essential Earthman: Henry Mitchell on Gardening. Indiana University Press. p. 113. ISBN 9780253215857.
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