Perennial Ground cover Magic Carpet thyme is perfect for edging the flower border, rock gardens, walkways, patios and in containers. Creeping Thyme (Thymus Serpyllum Magic Carpet) - If you have a stepping stone path or a flagstone patio, growing Magic Carpet seeds is a great way to add lovely, low-growing thyme to the walkway and patio crevices. Creeping thyme ground cover is only 2 - 4 inches high, and it spreads and flowers for most of the summer. Magic Carpet thyme is perfect for edging th...