Preseeded mats let you roll out flower gardens—no digging, furrowing or planting by hand! Custom designed by a horticulturalist to ensure beautiful and professional-looking results. Each 10'Lx3 1/2"W roll contains hundreds of seeds between two wood fiber layers to grow rich, colorful blossoms. Just loosen soil, place mat, cover lightly with topsoil and water. Sweet-scent allysum grow 8-16"H. Partial Sun.