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Flatspine Prickly Ash Zanthoxylum simulans

Other Common Name(s):

Previously known as:

  • Fagara podocarpa
  • Zanthoxylum acanthophyllum
Phonetic Spelling
zan-tho-ZI-lum
Description

Zanthoxylum simulans (flatspine prickly-ash) is an upright, vase-shaped, deciduous shrub with a wide flat-topped crown of glossy dark-green, pinnately-compound leaves. The bark of this plant is relatively smooth except for the broad spines on its branches and prickles on its trunk. Small green flowers open in mid-summer, creating a hazy texture. The inflorescences mature into dark red fruit that is dried and used in a pepper-like spice. Z. simulans thrives when used as a specimen plant or when planted as a group.

Cultivars:
Tags:
#fragrant#deciduous#small tree#edible#specimen#fragrant leaves#woodland garden#showy fruits#small groups#fragrant fruits#fragrant bark
Cultivars:
Tags:
#fragrant#deciduous#small tree#edible#specimen#fragrant leaves#woodland garden#showy fruits#small groups#fragrant fruits#fragrant bark
  • Attributes:
    Genus:
    Zanthoxylum
    Species:
    Simulans
    Family:
    Rutaceae
    Life Cycle:
    Woody
    Recommended Propagation Strategy:
    Seed
    Country Or Region Of Origin:
    S. Korea
    Edibility:
    Fruits are roasted dried and used in a pepper-like spice that is used in the Chinese "five spice" mixture
  • Whole Plant Traits:
    Plant Type:
    Edible
    Shrub
    Tree
    Leaf Characteristics:
    Deciduous
    Habit/Form:
    Spreading
    Vase
    Growth Rate:
    Medium
    Texture:
    Coarse
    Appendage:
    Spines
  • Cultural Conditions:
    Light:
    Dappled Sunlight (Shade through upper canopy all day)
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    Clay
    High Organic Matter
    Loam (Silt)
    Sand
    Shallow Rocky
    Soil pH:
    Acid (<6.0)
    Alkaline (>8.0)
    Neutral (6.0-8.0)
    Soil Drainage:
    Good Drainage
    Usda Plant Hardiness Zone:
    5a, 5b, 6a, 6b, 7a, 7b
  • Fruit:
    Fruit Color:
    Gold/Yellow
    Red/Burgundy
    Fruit Value To Gardener:
    Edible
    Fragrant
    Display/Harvest Time:
    Fall
    Fruit Type:
    Berry
    Fruit Description:
    Fragrant dark red round fruits split to reveal black seeds. They can be dried and used as a pepper-like spice.
  • Flowers:
    Flower Color:
    Green
    Flower Inflorescence:
    Insignificant
    Flower Bloom Time:
    Summer
    Flower Description:
    Small green flowers open mid-summer. Plants are dioecious, so if you want fruit you need to plant a male and female.
  • Leaves:
    Leaf Characteristics:
    Deciduous
    Leaf Color:
    Green
    Leaf Feel:
    Glossy
    Leaf Value To Gardener:
    Fragrant
    Leaf Type:
    Compound (Pinnately , Bipinnately, Palmately)
    Hairs Present:
    No
    Leaf Length:
    3-6 inches
    Leaf Description:
    Fragrant when crushed 3-5 in. compound leaves with 7 to 11 leaflets. Resembles ash leaves.
  • Bark:
    Bark Color:
    Light Brown
    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.
  • Stem:
    Stem Color:
    Brown/Copper
    Red/Burgundy
    Stem Is Aromatic:
    No
  • Landscape:
    Landscape Location:
    Woodland
    Design Feature:
    Small groups
    Specimen
    Problems:
    Spines/Thorns