Lilac bushes are distinctive and fragrant additions to your outdoor landscape, but not all homeowners have the space to accommodate the large, flowering perennial shrub. If space is at a premium in your yard, dwarf lilac bushes that sport delicate white flowers during their blooming season are a space-saving option that still deliver a dramatic visual impact.
The selling feature of miniature or dwarf lilac bushes is their compact size. A full-size, healthy lilac bush can grow up between 25 and 30 feet tall and can have a width of over 8 feet. For many gardens, lilacs dominate the space and leave little room for other species. Dwarf lilac bushes grow to a much more modest 8 to 10 feet tall, though some species may reach up to 15 feet after several years of healthy growth. Miniature lilac bushes are unlikely to span more than 6 feet wide, leaving ample room for additional plants in your garden or along your hedge line.
Of all of the colours of miniature lilac bushes, white flowers tend to be the most rare; more common colours such as purple, pink and rose are available in a wide range of dwarf cultivars. If you prefer the delicate, clean look of white blossoms, consider a dwarf variety like the Edith Cavell (Syringa vulgaris); this variety of lilac features pure white flowers during its blooming season and averages 9 feet tall and around 5 feet wide. The White Persian dwarf lilac also displays pure white blossoms; though it won't grow above 8 feet, it features a dramatically horizontal spread for ideal use along walkways and borders.
Dwarf lilac bushes require much of the same care as full-size lilac bushes. In order to maintain their shape and promote healthy growth, dwarf lilacs should be pruned or trimmed every spring; pruning will provide space for new flowers as well as keep the height and width under control. Dwarf lilacs thrive in full sun and well-drained soil. To avoid crowding, keep your dwarf lilacs spaced about 8 feet apart. Dwarf lilacs don't have the same aggressive growth as their full-sized relatives, so plant them in a location far away from taller evergreens and firs that may block the sun and stunt their growth.