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PlantFiles: Fringe Tree, Old Man's Beard, Grancy Graybeard
Chionanthus virginicus 'Emerald Knight'

Family: Oleaceae (oh-lee-AY-see-ee) (Info)
Genus: Chionanthus (kye-oh-NAN-thus) (Info)
Species: virginicus (vir-JIN-ih-kus) (Info)
Cultivar: Emerald Knight

4 members have or want this plant for trade.


12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 m)

10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 m)

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)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)

Sun Exposure:
Sun to Partial Shade
Light Shade


Bloom Color:
White/Near White

Bloom Time:
Mid Spring


Other details:
Flowers are fragrant

Soil pH requirements:
4.5 or below (very acidic)
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)

Patent Information:
Unknown - Tell us

Propagation Methods:
From semi-hardwood cuttings
Allow cut surface to callous over before planting
From seed; sow indoors before last frost
From seed; direct sow after last frost
By simple layering

Seed Collecting:
Allow unblemished fruit to ripen; clean and dry seeds

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1 positive
1 neutral
No negatives

Gardeners' Notes:

Neutral coriaceous On May 18, 2014, coriaceous from ROSLINDALE, MA wrote:

This male cultivar is said to differ from the species in having a more tree-like habit and in having larger, more profuse flowers.

Like the species, this is very late to emerge from dormancy in the spring, generally not till June here (Boston Z6a).

Introduced by Highland Creek Nursery of NC.

Positive schifferle On May 18, 2014, schifferle from Lansing, KS wrote:

It grows beautifully in our slightly alkaline, clay Kansas soil. There is a huge old one at Carroll mansion in Leavenworth, too. It is one of my favorite trees of all. No disease or insect problems. Tolerates our weather extremes. Slow growing is the worst I can say about it.


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

Centre, Alabama
Chelsea, Alabama
Chunchula, Alabama
Atlanta, Georgia (2 reports)
Brunswick, Georgia
Conyers, Georgia
Decatur, Georgia
Doerun, Georgia
Norcross, Georgia
Lansing, Kansas
Leavenworth, Kansas
Pembroke, Kentucky
Goldonna, Louisiana
Napoleonville, Louisiana
Whitehouse Station, New Jersey
Fairport, New York
Indian Trail, North Carolina
New Bern, North Carolina
Bethlehem, Pennsylvania
Memphis, Tennessee

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