LILACS
(Last updated 12/10/03)

There are about 24 native species of lilacs (genus Syringa), including both shrub and tree forms. The Persians apparently grew a species native to western China as early as the 13th c, but the fragrant purple lilac, S. vulgaris, a species native to southeastern Europe, is the source of our most familiar garden plants. It was apparently grown fairly widely even in central Europe before the 16th c, but the ambassador Count de Busbecq is credited with introducing it (as well as the Angora goat, horse chestnut, mock orange, and tulip) to Vienna - and Europe - from Constantinople in 1563.

The best known lilac cultivars, the so-called "French hybrids" were developed primarily by Lemoine et Fils of Nancy, who initiated a lilac breeding revolution with the species in the 1870s; the family's efforts lasted into the 1950s through three generations, and produced more than 200 named cultivars.

European settlers brought lilacs to the United States in the 1620s, and by the 1650s they were grown throughout the colonies. Because they need a period of cold dormancy to trigger flowering, lilacs are closely associated with the Northeast and Canada; eg, the Highland Park Lilac Festival in Rochester, NY attracts over half a million people annually to view more than 1200 bushes representing over 500 varieties, the Royal Botanical Gardens in Hamilton, Ontario, which also contains a huge lilac collection, is home to the International Registration Authority for new cultivars, and there are plants at the Wentworth estate in Portsmouth, NH, and on Mackinac Island in MI that are purported to be over 250 years old.

However, some lilacs also grow well in the Northwest, in particular the over 70 varieties developed in the early 1900s by Hulda Klager, "The Lilac Lady", in Woodland, WA, ca 35 mi north of Portland. Her 2-story farmhouse (right) and the surrounding five acres of gardens are open to the public during early May

In addition to the many acres of lilacs, the gardens also contain some spectacular specimen plantings, including a wonderful wisteria arbor (left) and a monkey puzzle tree (right)

Except for S. vulgaris (and S. josikaea, the Hungarian lilac), species lilacs come from Asia; and some of these made their way into European and American gardens as early as the late 19th c. Today, among the most commonly cultivated and hybridized are S. chinensis, the Chinese (or "Persian") lilac, a shrub growing 10 to 12 ft tall and 6 to 8 ft wide (its hybrids were initially developed in Rouen, France); S. meyeri, the dwarf Korean (or paliban) lilac, a spreading shrub that grows only 4 to 5 ft high; S. patula, the Manchurian lilac (eg, "Miss Kim"), a densely branched, rounded shrub 5 to 6 feet wide and tall; and S. reticulata, the Japanese tree lilac, which grows over 25 ft tall, 15 feet wide, and blooms very late, bearing white flowers in June

Other species used in hybridization are the early-flowering S. oblata (eg, the hyacinthiflora hybrids); the late-flowering S. villosa (eg, the Preston hybrids) and S. josikaea (the josiflexa tribrids); and the heat and mildew resistant S. microphylla, or little-leaf lilac.

Today almost 2,000 lilac varieties are available. Single lilac flowers consist of 4 petals (left), while doubles have multiple sets of four; both span a variety of colors - white, creamy yellow, pink, blue, violet, lavender, magenta, and purple. Van Eaton (center) is a blue with pink buds. There are also bicolor cultivars like "Sensation," which has sharply defined white picotee edges (right)

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