Season: Annual Average Germ Time: 7 - 14 days USDA Zones: 4 - 11 Height: 6 inches Width: 14 - 16 inches Bloom Season: Early summer to late summer Growth Rate: Aggressive Environment: Full sun Moisture: Keep soil slightly moist, but not wet until germination Depth: Press gently into soil but do not cover Deer Resistant: Yes Soil Type: Well-drained, dry, pH 6.1 - 7.5 Latin Name: Portulaca grandiflora Description Moss Rose (Portulaca Grandiflora) -Portulaca ground cover is hardy and makes a great addition for any hot landscape. It establishes nicely from Moss Rose seeds and produces rounded, double, fragrant flowers that are nestled above succulent foliage. It makes a wonderful contrast with its dark green leaves and bright red flowers. Moss Rose flowers form on the stem tips, and they open only during bright sunlight, closing at night and on cloudy days. Portulaca Moss Rose makes a wonderful ground cover plant growing well in poor, sandy or gravelly soils. The soil must be very well-drained for this ground cover plant to flourish.