Outsidepride Ice Plant Congestum Ground Cover Seed- 200 Seeds A mainstay of the water-saving or dry-climate garden, this hardy Ice Plant is a colorful ground cover that blooms even in harsh conditions. Both evergreen and flowering, it offers so much and requires so little care. These perennials are best in USDA Zones 5 - 9. The height at maturity is 4 inches. Plant Delosperma seeds indoors 4 - 6 weeks before last frost is predicted. Use starter trays and sterile potting mix. Ice Plant has foliage that is apple green and succulent. The brilliant yellow colored blooms are 1 - 2 inches across and cover the foliage, opening in the morning and closing in the evening. This hardy, dwarf perennial forms a ground-hugging carpet that faithfully blooms season after season. It's also great in containers! Our seeds are always Non-GMO and packaged for the current year.