Botanical Name: Syringa reticulata 'Ivory Silk'
Common Name: Ivory Silk Japanese Tree Lilac  
Plant photo of: Syringa reticulata 'Ivory Silk'
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Water Saving Tip:

Group plants in your garden according to their water needs (hydrozone).

  • Anatomy

  • Culture

  • Design

Plant Type



Height Range



Flower Color



Flower Season



Leaf Color

Dark Green


Bark Color



Fruit Color



Fruit Season

Summer, Fall


Full, Half



Medium, Extra in Summer


Growth Rate



Soil Type

Clay, Loam, Rocky


Soil Condition

Average, Rich, Well-drained, Moist, Dry


Soil pH

Neutral, Basic


Adverse Factors


Design Styles

English Cottage, Formal, Japanese, Ranch, Woodland


Accenting Features

Multi-trunk Tree, Showy Flowers, Silhouette, Specimen


Seasonal Interest



Location Uses

Background, Shrub Border, Foundation, Patio, Walls / Fences


Special Uses

Hedge, Screen, Small Spaces


Attracts Wildlife

Birds, Butterflies

Information by: Stephanie Duer
  • Description

  • Notes

'Ivory Silk' is a selection of S. reticulata, noted for its large and creamy flower panicles. It is grown as either a large shrub or small tree. In tree form, it typically grows to 20 to 25 feet tall and 15 to 20 feet wide with an oval-rounded crown; as a multi-stemmed shrub, figure on 15 to 20 feet tall and wide. Showy, fragrant, creamy white flowers bloom in upright panicles in early summer (later than most other lilac species). Some gardeners dislike the privet-like smell of the flowers. Flowers give way to loose clusters of brown capsules that persist into winter. Reddish-brown peeling bark is attractive on younger branches, gradually turning gray with age. Sharply tipped, lanceolate to ovate, dark green leaves; no fall color.
Grow in well drained soil and full sun; will tolerate part shade but will bloom less profusely. Prefers loamy soils. As with other lilacs, if pruning is necessary, do so immediately after flowering.