Portulaca is a genus of flowering plants in the family Portulacaceae, comprising about 40 to 100 species found in the tropics and warm temperate regions. The members of the genus are commonly known as Purslane, Sun Plant, Rose Moss, and Wax Pink. Common Purslane (Portulaca oleracea) is widely considered an edible plant and, in some areas, an invasive type of weed. You can eat Purslane raw or cooked, and it works well in stir-fried dishes.
Portulacas are relatively hardy, easy-to-grow annuals that reach 6 to 18 inches (15 to 45 cm). They have fleshy leaves, bloom from summer into the second half of fall, and have cup-shaped flowers that can be yellow, red, pink, or white.
Growing Conditions
Light: Full sunlight
Water: During the growing period, Portulacas need frequent watering, but let the soil dry between waterings. They do not like wet conditions and will rot in constantly wet soil.
Soil: Portulacas prefer sandy, well-drained soil.
Fertilizer: Apply a balanced, slow-release fertilizer with minor elements every six months.

General Care
Portulacas love full sun and tolerate various soil types, but prefer sandy, well-drained soil. These plants tolerate heat and drought well. They spread quickly, and you may need control methods to keep them from becoming invasive in areas where they are not wanted. Species such as Portulaca oleracea require no attention when growing and flowering. However, you should remove them from the garden before setting seeds, as they may take over your garden. You do not need to water often to care for Portulaca properly.
Sow Portulaca seeds on the soil surface after the last spring frost. Ideally, grow Portulaca in the sunniest part of the garden.
If starting Purslane indoors, sow the seeds about 1.5 months in advance. It typically takes about one to three weeks to germinate at 70°F to 86°F (21°C to 30°C). Once ready, transfer the seedlings into the garden, spacing them 6 to 24 inches (15 to 60 cm) apart (depending on the species). Do this toward the end of spring.
Links
- Back to genus Portulaca
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus