Life Span
Perennial
Perennial
Type
Perennial
Tree
Origin
California
Asia
Types
-
Pterocarya fraxinifolia, Pterocarya stenoptera
Number of Varieties
13
0
40000
👆🏻
Habitat
Chaparral, River side
Boggy areas, Mixed deciduous forest
USDA Hardiness Zone
7-106-9
0
99
👆🏻
AHS Heat Zone
9-1
9-1
Sunset Zone
H1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Oval or Rounded
Plant Size
Minimum Height
120.00 cm1,520.00 cm
0
3900
👆🏻
Minimum Width
120.00 cm1,220.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Yellow
Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Tan
Green, Brown
Leaf Color in Spring
Gray Green
Green
Leaf Color in Summer
Gray Green
Green
Leaf Color in Fall
Gray Green
Green, Yellow green
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Lance shaped
Pinnate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun
Full Sun
Growth Rate
Fast
Fast
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Early Spring, Spring, Late Spring, Early Summer, Summer
Spring, Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought, Soil Compaction
Where to Plant?
Ground
Ground
How to Plant?
Cuttings, Seedlings
Divison, Stem Cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Needs watering once a week, Water well when planted
Needs less watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun
Full Sun
Pruning
prune nearly to the ground in late fall
Remove all suckers, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
organic fertlizers
All-Purpose Liquid Fertilizer, Nitrogen, Phosphorous
Pests and Diseases
Verticillium Wilt
-
Plant Tolerance
Drought
Drought, Soil Compaction
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
Foliage Sheen
-
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bees, Birds, Butterflies
Birds, Butterflies, Hummingbirds
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
-
Plant Benefits
Medicinal Uses
antimicrobial, Astringent, Gum Problems, Stomach pain
Diaphoretic
Part of Plant Used
Flower Stalk
Bark, Fruits, Seeds
Other Uses
Used as Ornamental plant
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Groundcover, Mixed Border, Wildflower
Feature Plant, Shade Trees
Botanical Name
ROMNEYA coulteri
Pterocarya fraxinifolia
Common Name
Matilija Poppy
Caucasian wingnut, Caucasian walnut
In Hindi
Matilija Poppy
wingnut
In German
Matilija Poppy
wingnut
In French
Matilija Poppy
wingnut
In Spanish
Matilija amapola
wingnut
In Greek
Matilija παπαρούνας
wingnut
In Portuguese
Matilija Poppy
wingnut
In Polish
Matilija Poppy
Wingnut
In Latin
Matilija Poppy
wingnut
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Papaverales
Fagales
Family
Papaveraceae
Juglandaceae
Genus
Romneya
Pterocarya
Clade
Angiosperms, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
Juglandeae
Subfamily
Papaveroideae
Juglandoideae
Number of Species
26
1
27800
👆🏻