Portulaca grandiflora Hook.
Moss Rose, Moss Rose Purslane, Rose Moss, Mexican Rose, Sun Rose, Sun Plant, Rock Rose, Eleven O'Clock
Portulaca pilosa subsp. grandiflora
This species is native to Argentina, southern Brazil, and Uruguay.
Portulaca grandiflora is an annual succulent with prostrate to suberect stems with fleshy green linear leaves. The stems are diffusely branched and hairy at the nodes. Branches are up to 12 inches (30 cm) long. Leaves are alternate or irregularly scattered and up to 1.2 inches (3 cm) long. Flowers are purple, red, pink, orange, yellow, or white. They are up to 2 inches (5 cm) in diameter, appear in terminal clusters from late spring to frost, and do not open on cloudy or rainy days. Fruits are ovoid capsules with iridescent grey seeds. They are about 0.25 inches (0.6 cm) in diameter.
The specific epithet "grandiflora" means large-flowered.
How to Grow and Care
Portulacas tolerate many kinds of soil but prefer sandy, well-drained soil and love the full sunlight. These plants are excellent for high heat and drought tolerance and will seed and spread themselves very well. Some control methods may be needed to keep Portulacas from becoming invasive in areas they are not wanted. However, these wonderful plants do spread easily and very well.
These succulents require no attention at all when growing and flowering. However, you should remove them from the garden before Portulacas have a chance to set seeds, as they may take over the garden. You do not need to water often for proper Portulaca care. The cylindrical foliage of the plants retains moisture very well. Thus, regular watering is not needed. Just a light watering will do when they are watered, as their root zone is very shallow.
The seeds of Portulacas should be sown on the soil surface following the last frost of spring. Ideally, these plants should be grown in a sunny part of the garden. Starting Portulaca indoors starts about one and a half months in advance.
Learn more at How to Grow and Care for Portulaca.
- Back to genus Portulaca
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus
Click on a photo to see a larger version.