Life Span
Perennial
Perennial
Type
Tree
Flowering Plants
Origin
Asia
North-Central United States, Central United States, Western United States, Texas
Types
Pterocarya fraxinifolia, Pterocarya stenoptera
Blue Toadflax, Old-Field Toadflax
Number of Varieties
330
0
40000
👆🏻
Habitat
Boggy areas, Mixed deciduous forest
Cultivated Beds
USDA Hardiness Zone
6-93-9
0
99
👆🏻
AHS Heat Zone
9-1
9-1
Sunset Zone
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 10
Habit
Oval or Rounded
Upright/Erect
Plant Size
Minimum Height
1,520.00 cm61.00 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm25.40 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow green
Pink, Light Blue, Lavender
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Brown
-
Leaf Color in Spring
Green
Light Green, Blue Green, Gray Green
Leaf Color in Summer
Green
Blue Green, Gray Green
Leaf Color in Fall
Green, Yellow green
Blue Green, Gray Green
Leaf Color in Winter
-
-
Shape
Leaf Shape
Pinnate
Oval to egg shaped
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam, Sand
Clay, Loam
The pH of Soil
Acidic, Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Spring, Late Spring
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought, Soil Compaction
Drought
Where to Plant?
Ground
Ground
How to Plant?
Divison, Stem Cutting
Cuttings, Divison, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Needs less watering
Average Water Needs, Do Not over Water
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Clay, Loam
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Remove all suckers, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Nitrogen, Phosphorous
use all-purpose fertilizers
Pests and Diseases
-
Foliar disease, Root rot, Spider mites
Plant Tolerance
Drought, Soil Compaction
Drought
Flowers
Showy
Showy
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
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies, Hummingbirds
Bumblebees
Allergy
-
Depression, High blood cholestrol, Pain
Uses
Aesthetic Uses
-
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
-
Air purification
Plant Benefits
Medicinal Uses
Diaphoretic
Analgesic, Febrifuge, Stomachic
Part of Plant Used
Bark, Fruits, Seeds
Leaves, Root
Other Uses
-
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Rock Garden / Wall, Wildflower
Botanical Name
Pterocarya fraxinifolia
PENSTEMON grandiflorus
Common Name
Caucasian wingnut, Caucasian walnut
Large Beardtongue, Shell-leaf Penstemon, Wild Snapdragon
In Hindi
wingnut
Wild Snapdragon
In German
wingnut
Wilde Snapdragon
In French
wingnut
Snapdragon sauvage
In Spanish
wingnut
Salvaje Snapdragon
In Greek
wingnut
άγρια Snapdragon
In Portuguese
wingnut
Selvagem Snapdragon
In Polish
Wingnut
Dziki Snapdragon
In Latin
wingnut
Phlox Ferae
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Scrophulariales
Family
Juglandaceae
Scrophulariaceae
Genus
Pterocarya
Penstemon
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
Juglandeae
-
Subfamily
Juglandoideae
Scrophularioideae
Number of Species
640
1
27800
👆🏻