• Photo of Zanthoxylum simulans (Zanthoxylum simulanss)

Plant Profile: Zanthoxylum simulans

Taxonomy: Zanthoxylum simulans

Names

Chinese-Pepper, Flatspine Prickly Ash, Szechuan Pepper

  • Photo of Zanthoxylum simulans (Zanthoxylum simulanss)

Phonetic Spelling:zan-THOK-sil-um sim-YOO-lans

Genus:Zanthoxylum

Species:simulans

Family:Rutaceae

Zanthoxylum simulans, commonly known as flatspine prickly-ash, is a deciduous shrub characterized by its upright, vase-like form and a broad, flat crown adorned with glossy, dark green, pinnately compound leaves. Its bark is generally smooth, punctuated by prominent spines on the branches and prickles along the trunk. In mid-summer, small green flowers bloom, adding a soft texture to the landscape. These inflorescences eventually develop into dark red fruits, which are harvested and dried to create a spice reminiscent of pepper. Z. simulans flourishes both as a standalone specimen and when grouped together in plantings.

Zanthoxylum simulans Feature Summary

Zanthoxylum simulans Image Gallery

Tags

#fragrant
#deciduous
#small tree
#perennial
#specimen
#fragrant leaves
#security
#prickles
#showy fruits
#fragrant fruits
#fragrant bark
#screening
#edible garden
#small group plantings
#woodlands

Similar Plants

Zanthoxylum simulans is often confused with:

Zanthoxylum simulans Feature Summary

Attributes
Asia, Australia, China, Japan, Taiwan
Fruits are roasted dried and used in a pepper-like spice that is used in the Chinese "five spice" mixture
Perennial
Woody
Edible fruit
Shade
Fruit
Fragrant dark red round fruits split to reveal black seeds. They can be dried and used as a pepper-like spice.
Red/Burgundy
Brown/Copper
Flowers
Small green flowers open mid-summer. Plants are dioecious, so if you want fruit you need to plant a male and female.
White
Green
Leaves
Fragrant when crushed 3-5 in. compound leaves with 7 to 11 leaflets. Resembles ash leaves.
Compound (Pinnately , Bipinnately, Palmately)
Serrate
Crenate
3-6 inches
Glossy
Leathery
Bark
The bark of this plant is relatively smooth except for the broad spines on its branches and prickles on its trunk. It is aromatic like the leaves and fruits.
Dark Gray
Light Brown
Orange
Whole Plant Traits
Shrub
Edible
Tree
Rounded
Erect
Dense
Spreading
Vase
Coarse
Prickles
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Dappled Sunlight (Shade through upper canopy all day)
Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)
Good Drainage
Moist
5b
5a
6a
6b
7a
7b
8b
8a
9a
9b
Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky
Stem
Brown/Copper
Red/Burgundy
Landscape
Border
Screen/Privacy
Small groups
Specimen
Security
Urban Conditions
Wind
Woodland
Naturalized Area
Spines/Thorns

Zanthoxylum simulans Attributes

Zanthoxylum simulans: Country Or Region Of Origin

Asia, Australia, China, Japan, Taiwan

Zanthoxylum simulans: Edibility

Fruits are roasted dried and used in a pepper-like spice that is used in the Chinese "five spice" mixture

Zanthoxylum simulans: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Zanthoxylum simulans: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Zanthoxylum simulans: Play Value

Attractive Flowers
Attracts Pollinators
Buffer
Colorful
Defines Paths
Easy to Grow
Edible fruit
Fragrance
Pieces Used in Games
Screening
Shade
Sound
Textural
Wildlife Cover/Habitat
Wildlife Food Source
Wildlife Larval Host
Wildlife Nesting
Wind Break
Wind Shimmer

Zanthoxylum simulans Fruit

Zanthoxylum simulans: Fruit Description

Fragrant dark red round fruits split to reveal black seeds. They can be dried and used as a pepper-like spice.

Zanthoxylum simulans: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Zanthoxylum simulans: Fruit Color

grass
Brown/Copper
grass
Red/Burgundy

Zanthoxylum simulans: Fruit Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Zanthoxylum simulans: Display/Harvest Time

Fall
Spring
Summer
Winter

Zanthoxylum simulans Flowers

Zanthoxylum simulans: Flower Description

Small green flowers open mid-summer. Plants are dioecious, so if you want fruit you need to plant a male and female.

Zanthoxylum simulans: Flower Color

filter_vintage
Green
filter_vintage
White

Zanthoxylum simulans: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Zanthoxylum simulans: Flower Bloom Time

Winter
Spring
Summer
Fall

Zanthoxylum simulans Leaves

Zanthoxylum simulans: Leaf Description

Fragrant when crushed 3-5 in. compound leaves with 7 to 11 leaflets. Resembles ash leaves.

Zanthoxylum simulans: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Zanthoxylum simulans: Leaf Color

spa
Green

Zanthoxylum simulans: Deciduous Leaf Fall Color

spa
Red/Burgundy

Zanthoxylum simulans: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Zanthoxylum simulans: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Zanthoxylum simulans: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Zanthoxylum simulans: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Zanthoxylum simulans: Hairs Present

No
Yes

Zanthoxylum simulans: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Zanthoxylum simulans: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Zanthoxylum simulans: Leaf Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long-lasting
Showy

Zanthoxylum simulans Bark

Zanthoxylum simulans: Bark Description

The bark of this plant is relatively smooth except for the broad spines on its branches and prickles on its trunk. It is aromatic like the leaves and fruits.

Zanthoxylum simulans: Bark Color

grass
Dark Gray
grass
Light Brown
grass
Orange

Zanthoxylum simulans Whole Plant Traits

Zanthoxylum simulans: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Zanthoxylum simulans: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Zanthoxylum simulans: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Zanthoxylum simulans: Growth Rate

Slow
Medium
Rapid

Zanthoxylum simulans: Texture

Fine
Medium
Coarse

Zanthoxylum simulans: Appendage

Prickles
Spines
Tendrils
Thorns

Zanthoxylum simulans Cultural Conditions

Zanthoxylum simulans: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Zanthoxylum simulans: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Zanthoxylum simulans: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Zanthoxylum simulans: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Zanthoxylum simulans: USDA Plant Hardiness Zone

thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Zanthoxylum simulans: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Zanthoxylum simulans Stem

Zanthoxylum simulans: Stem Color

grass
Brown/Copper
grass
Red/Burgundy

Zanthoxylum simulans: Stem Is Aromatic

No
Yes

Zanthoxylum simulans Landscape

Zanthoxylum simulans: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Zanthoxylum simulans: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Zanthoxylum simulans: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Zanthoxylum simulans: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy