Life Span
Perennial
Perennial
Type
Tree
Needled or Scaled Evergreen
Origin
Asia
Western United States
Types
Pterocarya fraxinifolia, Pterocarya stenoptera
Norway Spruce, White Spruce, Picea omorika
Number of Varieties
335
0
40000
👆🏻
Habitat
Boggy areas, Mixed deciduous forest
Rocky areas, stream banks, Woodland Garden Canopy
USDA Hardiness Zone
6-92-8
0
99
👆🏻
AHS Heat Zone
9-1
8-1
Sunset Zone
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17
Habit
Oval or Rounded
Pyramidal
Plant Size
Minimum Height
1,520.00 cm1,200.00 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm900.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow green
Green, Orange, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Brown
Brown
Leaf Color in Spring
Green
Green, Blue Green, Steel Blue
Leaf Color in Summer
Green
Green, Blue Green, Steel Blue
Leaf Color in Fall
Green, Yellow green
Green, Blue Green, Steel Blue
Leaf Color in Winter
-
Blue Green, Gray Green, Steel Blue
Shape
Leaf Shape
Pinnate
Needle like
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam, Sand
Loam
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Spring, Late Spring
Early Spring, Late Spring, Mid Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought, Soil Compaction
Drought
Where to Plant?
Ground
Ground
How to Plant?
Divison, Stem Cutting
Seedlings, Semi-ripe cuttings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Needs less watering
Average Water Needs, Do Not over Water, Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Loam
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Remove all suckers, Remove damaged leaves, Remove dead branches, Remove dead leaves
Prune in winter, Remove crossing or rubbing branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Fertilizers
All-Purpose Liquid Fertilizer, Nitrogen, Phosphorous
Apply 10-10-10 amount, slow-release fertilizers
Pests and Diseases
-
Red blotch
Plant Tolerance
Drought, Soil Compaction
Drought
Flowers
✔
✘
✔
✘
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies, Hummingbirds
Birds
Allergy
-
allergic reaction, Anaphylaxis, Asthma, Hay fever, Pollen, Respiratory problems, Runny nose, Watery eyes
Uses
Aesthetic Uses
-
Showy Purposes, Used as Christmas tree
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
-
Air purification, Windbreak
Plant Benefits
Medicinal Uses
Diaphoretic
-
Part of Plant Used
Bark, Fruits, Seeds
Flowers, Inner Bark, Seeds
Other Uses
-
Paper pulp, Wood is used in construction
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Container, Feature Plant, Foundation, Mixed Border, Rock Garden, Wall, Screening, Wind Break
Botanical Name
Pterocarya fraxinifolia
PICEA pungens
Common Name
Caucasian wingnut, Caucasian walnut
Colorado blue spruce
In Hindi
wingnut
Blue Spruce Tree
In German
wingnut
Blue Spruce Baum
In French
wingnut
Blue Spruce Arbre
In Spanish
wingnut
Blue Spruce Árbol
In Greek
wingnut
Blue Spruce Tree
In Portuguese
wingnut
Árvore Spruce azul
In Polish
Wingnut
Blue Spruce Drzewo
In Latin
wingnut
Blue abiegnis
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Coniferophyta
Class
Magnoliopsida
Pinopsida
Order
Fagales
Pinales
Family
Juglandaceae
Pinaceae
Genus
Pterocarya
Picea
Clade
Angiosperms, Eudicots, Rosids
-
Tribe
Juglandeae
-
Subfamily
Juglandoideae
Piceoideae
Number of Species
635
1
27800
👆🏻