Alyssum saxatile, - Rock or Golden Alyssum, - is a desirable vernal flower, of dwarf habit, proper for rock-work, or to be planted in masses; the flowers are of a brilliant golden yellow, completely covering the plant, which is not more than eight or ten inches high. It is a suitable companion for the Phlox stolonifera, with its red flowers, and P. subulata, with pink of white flowers; all which appear together the first of May. Raised by seeds or by slipping the roots.