Photo by Melody

PlantFiles: Caucasian Wingnut
Pterocarya fraxinifolia

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Family: Juglandaceae (joo-glan-DAY-see-ee) (Info)
Genus: Pterocarya (ter-oh-KAIR-ee-uh) (Info)
Species: fraxinifolia (fraks-in-ee-FOH-lee-uh) (Info)

3 members have or want this plant for trade.

Category:
Trees

Height:
30-40 ft. (9-12 m)
over 40 ft. (12 m)

Spacing:
over 40 ft. (12 m)

Hardiness:
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:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
Pale Yellow
Pale Green

Bloom Time:
Late Spring/Early Summer

Foliage:
Deciduous

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From softwood cuttings
From seed; direct sow outdoors in fall

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry

Click thumbnail
to view:

By Gustichock
Thumbnail #1 of Pterocarya fraxinifolia by Gustichock

By Gustichock
Thumbnail #2 of Pterocarya fraxinifolia by Gustichock

By Gustichock
Thumbnail #3 of Pterocarya fraxinifolia by Gustichock

By Gustichock
Thumbnail #4 of Pterocarya fraxinifolia by Gustichock

By growin
Thumbnail #5 of Pterocarya fraxinifolia by growin

By growin
Thumbnail #6 of Pterocarya fraxinifolia by growin

By ViburnumValley
Thumbnail #7 of Pterocarya fraxinifolia by ViburnumValley

There are a total of 15 photos.
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Profile:

No positives
2 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Gustichock On Mar 13, 2006, Gustichock from Tandil
Argentina (Zone 10b) wrote:

I don't really find anything atractive on this tree! I mean, it's alright but... there's nothing that can capture my attention on it!
Perhaps, the best thing I can mention about it is its trunk! Looks solid and its wood seems to be hard (although it's not).
Its seeds are very easy to germinate! Sow them in a mixture of sand, compost and sphagnus. I sowed them in Autumn, inside my little green house and in less than a week the little seedlings were emerging out of the mixture I've mentioned above!

Neutral Terry On Sep 3, 2003, Terry from Murfreesboro, TN (Zone 7a) wrote:

Native to Asia, this tree's cascading flowers give it an exotic look, but it's actually fairly hardy, due no doubt to the fact it is related to the Caryas ("Walnuts")

Regional...

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

Copenhagen, California
Georgetown, Kentucky
Louisville, Kentucky
Moyock, North Carolina



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