Syringa, Common Lilac, French Lilac 'Wonderblue'

Syringavulgaris

Family
Oleaceae (oh-lee-AY-see-ee)
Genus
Syringa (si-RING-gah)
Species
vulgaris (vul-GAIR-iss)
Synonym
Sun Exposure
Full Sun
Foliage
Deciduous
Smooth
Height
4-6 ft. (1.2-1.8 m)
Spacing
36-48 in. (90-120 cm)
Hardiness
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)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Danger
N/A
Bloom Color
Light Blue
Dark Blue
Blue-Violet
Bloom Time
Late Spring/Early Summer
Other Details
Category
Shrubs
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Flowers are good for cutting
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
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
Non-patented
Propagation Methods
From softwood cuttings
From seed; stratify if sowing indoors
From seed; sow indoors before last frost
By grafting
By air layering
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Phoenix, Arizona

Indianapolis, Indiana

Dubuque, Iowa

Sparks, Nevada

Litchfield, New Hampshire

Featured Videos

Gardener's Notes:

2
positives
0
neutral
1
negative
Sort By:
Sort By:
N
Sparks, NV (Zone 7a) | June 2019 | positive

Maybe this lilac stays as small as claimed (8 feet maximum, often advertised as smaller) when it's planted where it's not happy. I casua...Read More

D
Asbury, IA | May 2013 | negative

Very prone to mildew, also leggy. Blooms only last for a week. After waiting 5 years for it to bloom and then getting two good years' wo...Read More

J
Litchfield, NH (Zone 5b) | April 2011 | positive

Hardy, undemanding. Compact and bushy. Survives drought, transplanting etc. and still flowers! Lavender buds open pale blue - beautiful!

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