Sem Ash Leaf Spirea, Sorbaria sorbifolia 'Sem' (16,336), is a pinkish-red, fern-like spring foliage that unfurls along deep pink stems . In July and August the neat, round shrub covers itself with creamy white blossoms. This dwarf variety makes a wonderful low hedge, or a great accent. Sem is an improvement from older Sorbaria varieties. Compact, better-branched, and more dense than others, it creates a tight, bushy little mound in the garden, making a fine low hedge or accent planting as well as a shrub border. It is elegant, space-saving, and beautiful! Sem forms a neat 3 to 4 foot shrub in the partly shaded garden, which adds a nice texture. This shrub is easy to grow and quite adaptable, thriving in any well-drained soil. It is especially valuable for northern climates.