Problem: Purslane (Lawns)
Portulaca oleracea Purslane, a summer annual weed that thrives in hot, dry weather, is seldom found in the spring when the lawn is being treated for other weeds. Purslane grows vigorously, forming a thick mat. The small yellow flowers open only in the full sunlight. Purslane primarily invades bare spots in lawns or thin lawns that have not been watered properly. Purslane stores water in its thick, fleshy stems and leaves and therefore survives longer than grass during dry weather.
Spray the lawn when the weed is actively growing.