The Japanese tree lilac ( Syringa reticulata ) is a spring - blossom species grown in small Sir Herbert Beerbohm Tree cast or as a large shrub . This deciduous efflorescence tree diagram in the Oleaceae family is capable of growing in urban weather and is often used as a street tree . It is more disease resistant than other varieties of lilacs .
The Nipponese tree lilac is hardy in USDA hardiness zone 3 to 7 .
Japanese Lilac Tree Identification
Japanese tree diagram lilacs are valued for their creamy white flowers , which get on panicle that may be up to a human foot long and pull hummingbird and louse pollinators . This species blooms in June , which is a later bloom prison term compared toother lilac Bush .
The flowers produce a olfactory property remindful of privet . The leaves of this lilac are gloomy green and ovate and do not offer showy fall colour .
Young Japanese lilac trees have reddish browned peeling bark that turns grey as the tree ages . The bark is distinguished by its horizontal lenticels , which are porous domain of tissue paper that allow air to move in and out .

Japanese tree lilac have heights of up to 20 feet . This lilac can be arise as a multi - stem or single - trunk tree .
Site Selection for Japanese Lilacs
While a Japanese Sir Herbert Beerbohm Tree lilac will grow in partial sun , it will bloom comfortably in full Lord’s Day , which means at least six hours of sunshine a Clarence Day — so consider how much tone it will welcome when choosing a locating for this tree . Too much shade can also encourage the development oflilac leaf diseaseslike powdery mould .
Tip
Plant Nipponese tree lilacs in full sun for full flowering and to help keep the development of powdery mildew .
You also want to make certain to provide lilacs with safe air circulation to prevent powdery mildew .
Japanese Tree Lilac Soil Preparation
While Nipponese lilac can handle different grease types , including clay soils , they execute best in soil that has a electroneutral , slenderly alkaline or slenderly acidic pH and contains plenty of organic affair . The soil may take to be amended with calcined lime before planting if it is too acidulous .
Regardless of the grease character , Nipponese tree lilac do not execute well when their root are allowed to stand in piddle . Therefore , well - draining filth is a must .
Nipponese tree diagram lilacs must be plant in dirt with excellent drain .
Planting a Japanese Lilac Tree
You ’ll find Nipponese lilac trees for sale at nurseries , which is the most vulgar way to introduce this industrial plant into your landscape . When planting a nursery - grease one’s palms Nipponese tree diagram lilac in your garden — whether it is a bare root works or has been clump and burlapped — you want to place the roots at the same depth at which they were growing in their original container .
Lilac shrub do not ask to be fertilise at planting , though they should be watered thoroughly and then given about an inch of weewee a workweek during their first year . Lilacs also do good from a layer of mulch that is 2 or 3 inches loggerheaded , but to forfend diseases , ensure the mulch does not impact the Qaeda of the tree diagram .