Photo by Melody

PlantFiles: Chinese Lilac
Syringa x chinensis 'Lilac Sunday'

Family: Oleaceae (oh-lee-AY-see-ee) (Info)
Genus: Syringa (si-RING-gah) (Info)
Species: x chinensis (chi-NEN-sis) (Info)
Cultivar: Lilac Sunday

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8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)

USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)

Sun Exposure:
Full Sun


Bloom Color:

Bloom Time:
Mid Spring


Other details:
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
From softwood cuttings
By grafting
By simple layering

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Click thumbnail
to view:

By victorgardener
Thumbnail #1 of Syringa x chinensis by victorgardener

By victorgardener
Thumbnail #2 of Syringa x chinensis by victorgardener

By victorgardener
Thumbnail #3 of Syringa x chinensis by victorgardener

By MountainMoon
Thumbnail #4 of Syringa x chinensis by MountainMoon


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive coriaceous On Mar 1, 2014, coriaceous from ROSLINDALE, MA wrote:

This is an exceptional lilac, introduced in 1997 by the Arnold Arboretum.

It's the equal of any lilac in fragrance, and surpasses any in the apparent size of the inflorescences. Instead of producing a pair of flower clusters at the tip of each twig, it produces a pair at each node within several feet of the tip. So it looks as if each branch terminates in a three-foot-long inflorescence.

The habit is much more graceful than the common lilac. Trunks and branches are more slender and gracefully arching, so its winter texture is finer. The leaves are narrower, contributing to the more refined impression. I think they're also a little less inclined to get powdery mildew than those of other lilacs.

If I had room for only one lilac, I would choose this one.


This plant has been said to grow in the following regions:

Forest Falls, California
Milton, Massachusetts
Roslindale, Massachusetts

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