Syringa reticulata
Common name: 
Japanese Tree Lilac
Giant Tree Lilac
si-RING-ga re-tik-u-LA-ta
Syringa reticulata subsp. reticulata
Native to (or naturalized in) Oregon: 
  • Deciduous shrub or small tree, stiff spreading branches, 20-30 ft (6-9 m) high; bark smooth with prominent horizontal lenticels.  Leaves simple, opposite, broad-ovate to ovate, 5-15 cm long, about half as wide, dark green above and grayish green and reticulate below.  Flowers white, in large clusters, showy; fragrance similar to that of privet flowers.  Fruit (capsule) warty, dry, oblong or ovoid, 2 cm long, green then yellow.
  • Sun.  More or less trouble free.
  • Hardy to USDA Zone 3      Native to Japan
  • Common cultivars include:
    • ‘Chantilly Lace’  -  has cream-yellow variegated leaves
    • ‘Ivory Silk’  -  compact, oval growth habit
    • ‘Summer Snow’  -  compact, large flower clusters
    Sometimes listed (Flora of China) as Syringa reticulata subsp. reticulata with lower taxa of:
    • Syringa reticulata subsp. amurensis: petiole stoutish, 1-2 cm; capsule blunt at apex
    • Syringa reticulata subsp. pekinensis: petiole slender, 1.5-3 cm; capsule acute to acuminate at apex
    • However, the Integrated Taxonomic Information System (ITIS) lists Syringa pekinensis and Syringa reticulata as distinct species.
  • reticulata: netted-veined, a reference to leaf veins
  • Corvallis: northeast corner Central Park
  • Oregon State Univ. campus: east side of McAlexander Fieldhouse.
Click image to enlarge
  • plant habit, flowering period

    plant habit, flowering period

  • flower clusters

    flower clusters

  • flower cluster and leaves

    flower cluster and leaves

  • plant habit, after flowering

    plant habit, after flowering

  • leaves


  • developing fruit

    developing fruit

  • plant habit and leaf, fall

    plant habit and leaf, fall

  • plant habit (shurb), fall

    plant habit (shurb), fall

  • trunk, bark

    trunk, bark