Caucasian Wingnut

Pterocaryafraxinifolia

Family
Juglandaceae (joo-glan-DAY-see-ee)
Genus
Pterocarya (ter-oh-KAIR-ee-uh)
Species
fraxinifolia (fraks-in-ee-FOH-lee-uh)
Synonym
Sun Exposure
Full Sun
Foliage
Deciduous
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)
Bloom Color
Pale Yellow
Pale Green
Bloom Time
Late Spring/Early Summer
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
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
Non-patented
Propagation Methods
From softwood cuttings
From seed; direct sow outdoors in fall
Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Regional

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

Copenhagen, Capital Region of Denmark

Georgetown, Kentucky

Louisville, Kentucky

Roslindale, Massachusetts

Moyock, North Carolina

Featured Videos

Gardener's Notes:

1
positive
2
neutrals
0
negative
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C
ROSLINDALE, MA | January 2015 | positive

This makes an excellent large shade tree for parks, schools, golf courses and other large areas. "A much better shade tree than ashes, ho...Read More

G
(Zone 10b) | March 2006 | neutral

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!
...Read More

T
T
Murfreesboro, TN (Zone 7a) | September 2003 | neutral

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 rela...Read More

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