• Photo of Pieris japonica (Pieris japonicas)

Plant Profile: Pieris japonica

Taxonomy: Pieris japonica

Names

Andromeda Japonica, Fetterbush, Japanese Andromeda, Japanese Pieris, Lily-of-the-valley Bush, Pieris

  • Photo of Pieris japonica (Pieris japonicas)

Phonetic Spelling:pee-AIR-iss jah-PON-ih-kah

Genus:Pieris

Species:japonica

Family:Ericaceae

Japanese Pieris is a slow-growing evergreen shrub or small tree that typically reaches heights of 9 to 13 feet and belongs to the heath family, Ericaceae. This species is indigenous to eastern China, Taiwan, and Japan, where it thrives in mountainous thickets. Characterized by its upright to spreading form, it features striking bronzed foliage as it emerges, along with eye-catching floral buds that develop in late summer and remain visually appealing throughout the fall and winter. The plant produces prominent white or pink flowers that bloom from late winter to early spring, lasting for about two to three weeks. The dried flower clusters can persist into winter unless pruned away. Its growth habit is sympodial, with densely packed, rosette-like leaves on greenish-yellow stems, while new growth displays a bronze-red or purplish hue. Japanese Pieris is often utilized as a specimen plant, in mass plantings, as foundation plantings, or for borders. In southern gardens, it benefits from some shade.

This plant thrives in full sun to partial shade and prefers moist, well-drained, acidic soil rich in organic matter. It does not tolerate wet conditions and requires protection from winter winds.

Common issues include leaf spot, dieback, nematodes, and lace bugs.

Identification Tips:

Pieris japonica Feature Summary

Pieris japonica Image Gallery

Tags

#fragrant
#evergreen
#showy flowers
#poisonous
#fragrant flowers
#showy leaves
#year-round interest
#cpp
#foundation planting
#fantz
#problem for cats
#problem for dogs
#problem for horses
#shrub borders

Similar Plants

Pieris japonica is often confused with:

Pieris japonica Feature Summary

Attributes
Fruit
Fruits are a dehiscent, 5-valved capsule that persist into winter.
Brown/Copper
< 1 inch
Flowers
The showy floral buds mature in late summer and are attractive in fall and winter. They give way to showy white (or pink) inverted urn-shaped flowers in 3-6 inch long terminal, drooping clusters that bloom in late winter to early spring. Individual flowers are 1/4 inch long. There are 5 calyx lobes that are valvate. There are 5 corolla lobes that are waxy and urceolate. There are 10 stamens.
Pink
White
Fragrant
Showy
Long Bloom Season
Spring
Summer
Fall
Winter
4-5 petals/rays
< 1 inch
Leaves
Leaves are alternate, leathery, simple, crowded rosette-like at branch tips. Shape is obovate-oblong to oblanceolate with acute to obtuse tips, cuneate bases, and crenate-serrate margins. They are dark green above and lighter green beneath, glabrous, and 1-4" in size. New growth is bronze-green to reddish or pinkish.
Green
Gold/Yellow
Brown/Copper
Oblong
Obovate
Oblanceolate
Serrate
Crenate
1-3 inches
Glossy
Leathery
< 1 inch
Bark
Bark is grey to brown and vertically fissured when mature
Dark Gray
Dark Brown
Stem
Twigs are hairless. Stems are green to yellow-green, glabrous when young, and have sympodial growth.
Green
Gold/Yellow
Smooth (glabrous)
Poisonous to Humans
Tingling sensation, salivation, nose running, eyes watering, nausea, vomiting, diarrhea, sweating, abdominal pain, headache, cardiac failure, weakness, and convulsions; may be fatal.
Andromedotoxin, Grayanotoxins
Leaves
Flowers
Whole Plant Traits
Shrub
Poisonous
Erect
Spreading
Medium
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)
Acid (<6.0)
Good Drainage
Moist
Coastal
Mountains
Piedmont
4b
5b
5a
6a
6b
7a
7b
8b
8a
High Organic Matter
Landscape
Asian Garden
Border
Foundation Planting
Mass Planting
Specimen
Poisonous to Humans
Problem for Cats
Problem for Dogs
Problem for Horses
Frequent Disease Problems
Frequent Insect Problems

Pieris japonica Attributes

Pieris japonica: Country Or Region Of Origin

East Asia

Pieris japonica: Wildlife Value

Deer resistant

Pieris japonica: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Pieris japonica Fruit

Pieris japonica: Fruit Description

Fruits are a dehiscent, 5-valved capsule that persist into winter.

Pieris japonica: Fruit Type

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

Pieris japonica: Fruit Color

grass
Brown/Copper

Pieris japonica: Display/Harvest Time

Fall
Spring
Summer
Winter

Pieris japonica: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Pieris japonica: Fruit Width

< 1 inch
1-3 inches
> 3 inches

Pieris japonica Flowers

Pieris japonica: Flower Description

The showy floral buds mature in late summer and are attractive in fall and winter. They give way to showy white (or pink) inverted urn-shaped flowers in 3-6 inch long terminal, drooping clusters that bloom in late winter to early spring. Individual flowers are 1/4 inch long. There are 5 calyx lobes that are valvate. There are 5 corolla lobes that are waxy and urceolate. There are 10 stamens.

Pieris japonica: Flower Color

filter_vintage
Pink
filter_vintage
White

Pieris japonica: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Pieris japonica: Flower Value To Gardener

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

Pieris japonica: Flower Bloom Time

Winter
Spring
Summer
Fall

Pieris japonica: Flower Petals

2-3 rays/petals
4-5 petals/rays
6 petals/rays
7 - 20 petals/rays
asymmetrical petals
Bracts
Colored Sepals
fused petals
more than 20 petals/rays
Tepals

Pieris japonica: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Pieris japonica: Flower Size

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

Pieris japonica Leaves

Pieris japonica: Leaf Description

Leaves are alternate, leathery, simple, crowded rosette-like at branch tips. Shape is obovate-oblong to oblanceolate with acute to obtuse tips, cuneate bases, and crenate-serrate margins. They are dark green above and lighter green beneath, glabrous, and 1-4" in size. New growth is bronze-green to reddish or pinkish.

Pieris japonica: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Pieris japonica: Leaf Color

spa
Brown/Copper
spa
Gold/Yellow
spa
Green

Pieris japonica: Leaf Type

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

Pieris japonica: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Pieris japonica: 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

Pieris japonica: Leaf Margin

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

Pieris japonica: Hairs Present

No
Yes

Pieris japonica: Leaf Length

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

Pieris japonica: Leaf Feel

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

Pieris japonica: Leaf Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long-lasting
Showy

Pieris japonica: Leaf Width

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

Pieris japonica Bark

Pieris japonica: Bark Description

Bark is grey to brown and vertically fissured when mature

Pieris japonica: Bark Color

grass
Dark Brown
grass
Dark Gray

Pieris japonica: Surface/Attachment

Bumpy
Exfoliating
Fissured
Furrowed
Lenticels
Papery
Patchy
Peeling
Ridges
Scaly
Shaggy
Shiny
Shredding
Smooth
Spongy

Pieris japonica Stem

Pieris japonica: Stem Description

Twigs are hairless. Stems are green to yellow-green, glabrous when young, and have sympodial growth.

Pieris japonica: Stem Color

grass
Gold/Yellow
grass
Green

Pieris japonica: Stem Is Aromatic

No
Yes

Pieris japonica: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Pieris japonica Poisonous to Humans

Pieris japonica: Poison Symptoms

Tingling sensation, salivation, nose running, eyes watering, nausea, vomiting, diarrhea, sweating, abdominal pain, headache, cardiac failure, weakness, and convulsions; may be fatal.

Pieris japonica: Poison Toxic Principle

Andromedotoxin, Grayanotoxins

Pieris japonica: Poison Severity

High
Low
Medium

Pieris japonica: Causes Contact Dermatitis

No
Yes

Pieris japonica: Poison Part

Bark
Flowers
Fruits
Leaves
Roots
Sap/Juice
Seeds
Stems

Pieris japonica Whole Plant Traits

Pieris japonica: 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

Pieris japonica: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Pieris japonica: 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

Pieris japonica: Growth Rate

Slow
Medium
Rapid

Pieris japonica: Maintenance

Low
Medium
High

Pieris japonica: Texture

Fine
Medium
Coarse

Pieris japonica Cultural Conditions

Pieris japonica: 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)

Pieris japonica: Soil pH

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

Pieris japonica: Soil Drainage

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

Pieris japonica: 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

Pieris japonica: NC Region

Coastal
Mountains
Piedmont

Pieris japonica: USDA Plant Hardiness Zone

thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b

Pieris japonica: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Pieris japonica Landscape

Pieris japonica: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Pieris japonica: 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

Pieris japonica: 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

Pieris japonica: 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