Portulaca grandiflora, moss rose or purslane, is a colorful and drought-tolerant annual plant. Here's a description along with some care tips:
 
Description:
Portulaca grandiflora is a low-growing succulent plant with thick, fleshy leaves and vibrant, rose-like flowers. The flowers come in a variety of colors, including pink, orange, yellow, red, and white, and they bloom profusely throughout the summer months. The foliage is typically green or reddish-green and forms a dense mat, making it ideal for ground cover or hanging baskets. Moss rose is prized for its heat tolerance and ability to thrive in hot, dry conditions.
 
Plant Care:
Sunlight: Portulaca grandiflora thrives in full sunlight. Plant it in a location where it will receive at least 6 to 8 hours of direct sunlight per day.
 
Soil: This plant prefers well-draining soil with a slightly acidic to neutral pH. Sandy or gravelly soils are ideal, as they mimic the plant's native habitat. Avoid heavy or waterlogged soils, as they can cause root rot.
 
Watering: While portulaca is drought-tolerant, it benefits from occasional watering during extended dry periods, especially if grown in containers or hanging baskets. Allow the soil to dry out between waterings to prevent overwatering, which can lead to root rot.
 
Fertilization: Portulaca grandiflora doesn't require much fertilizer. A balanced, water-soluble fertilizer applied once a month during the growing season is usually sufficient to promote healthy growth and flowering.
 
Pruning: Deadhead spent flowers regularly to encourage continuous blooming. You can also trim back any leggy or straggly stems to maintain a compact and tidy appearance.
 
Pests and Diseases: Moss rose is relatively resistant to pests and diseases. However, it may occasionally attract aphids or be susceptible to fungal diseases in humid conditions. Monitor the plant regularly and treat any problems promptly with insecticidal soap or fungicides if necessary.
 
Propagation: Portulaca grandiflora can be easily propagated from seeds or stem cuttings. Collect seeds from mature flower heads and sow them directly in the garden after the last frost date. Stem cuttings can be taken in spring or summer and rooted in moist soil.
 
Overwintering: Moss rose is typically grown as an annual in most regions, as it is frost-sensitive. However, in warmer climates, it may behave as a short-lived perennial. If you live in a colder climate, you can collect seeds or take cuttings to propagate new plants for the following year.
By following these care tips, you can enjoy the colorful and drought-tolerant beauty of Portulaca grandiflora in your garden or landscape throughout the summer months.