Pearlbush Exochorda racemosa
Other Common Name(s):
Previously known as:
- Exochorda giraldii
- Exochorda grandiflora
- Exochorda korolkowii
- Exochorda serratifolia
- Phonetic Spelling
- ek-so-KOR-da ra-see-MO-sa
- Description
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Pearlbush is a loose, upright, spring-flowering deciduous shrub in the rose family (Rosaceae). It is native to Central Asia, China and the Korean Peninsula. Several species have been recognized in the genus, but it is now regarded as having a single species (with four subspecies). The species epithet is Latin for "having racemes," which are the flower stalks.
It grows well in sun and prefers rich, well-drained, acidic soil, although it does well in more average soil and will tolerate alkaline soils and partial shade. It has slender branches and tends to have a loose or unkempt appearance with age.
Pearlbush is as broad as it is high, with a tolerance for heat and drought. The plant typically reaches a height of 10 feet but can go as high as 15 feet. It is a dependable, tough plant that leafs out early. It can become overarching and floppy, but it can be severely pruned to rejuvenate. However, because it blooms on the previous year's growth, you should wait until the current blooms are spent before pruning. It is reported to be invasive in some states but is not currently listed as such for North Carolina. It is an early-flowering shrub, which can be a valuable nectar source for insects.
The plant is most suitable for borders, hedges or foundation plantings. Dwarf forms make excellent bedding plants. Once established, it has a reputation for being tough and adaptable, but choose its location wisely because its taproot can make transplanting difficult.
Quick ID Hints:
- White, 5-petaled flowers; buds like pear-headed pins
- Leaves are mucronate and entire below the middle of the leaf
- Fruit is ridged, green-brown, top-shaped, dehiscent capsule
- Some leaves have serrate teeth above the middle of the leaf
Insects, Diseases and Other Plant Problems: No serious problems.
- See this plant in the following landscape:
- Cultivars / Varieties:
- Snow Day® 'Blizzard', 'The Bride'
- Tags:


















- Cultivars / Varieties:
- Snow Day® 'Blizzard', 'The Bride'
- Tags:
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Attributes:
- Genus:
- Exochorda
- Species:
- racemosa
- Family:
- Rosaceae
- Life Cycle:
- Woody
- Recommended Propagation Strategy:
- Seed
- Stem Cutting
- Country Or Region Of Origin:
- Central Asia and Southeastern China
- Dimensions:
- Height: 10 ft. 0 in. - 10 ft. 0 in.
- Width: 10 ft. 0 in. - 15 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Perennial
- Shrub
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Arching
- Broad
- Erect
- Rounded
- Maintenance:
- Low
- Texture:
- Medium
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Cultural Conditions:
- Light:
- 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:
- High Organic Matter
- Loam (Silt)
- Soil pH:
- Acid (<6.0)
- Soil Drainage:
- Good Drainage
- USDA Plant Hardiness Zone:
- 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
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Fruit:
- Fruit Color:
- Brown/Copper
- Green
- Fruit Type:
- Capsule
- Fruit Length:
- < 1 inch
- Fruit Description:
- Persists on plant. A dehiscent, 5-valved capsule, green turning to brown, less than 1/4" wide.
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Flowers:
- Flower Color:
- White
- Flower Inflorescence:
- Raceme
- Flower Value To Gardener:
- Showy
- Flower Bloom Time:
- Spring
- Flower Petals:
- 4-5 petals/rays
- Flower Size:
- 1-3 inches
- Flower Description:
- White showy flowers resemble pearls bloom in April for about 2 weeks. It flowers on previous season's growth so consider this when pruning. Racemous, on at ends of branches from previous year's growth. Racemes 3 to 4.5 inches long. Flowers white, unscented, 5-petaled, up to 2.5 inches across.
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Green
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Cuneate
- Elliptical
- Oblong
- Obovate
- Leaf Margin:
- Entire
- Serrate
- Hairs Present:
- No
- Leaf Length:
- 1-3 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- Medium green leaves, 1 to 3 inches long and half as wide, with no significant fall color. Alternate, simple, elliptic-oblong to obovate, mucronate, cuneate, serrate toward apex or entire, sometimes with two teeth evenly spaced (like ears) from apex, medium green above and whitish beneath, glabrous. Leafs out in the spring.
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Bark:
- Bark Color:
- Light Brown
- Light Gray
- Orange
- Surface/Attachment:
- Scaly
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Stem:
- Stem Color:
- Brown/Copper
- Stem Is Aromatic:
- No
- Stem Description:
- Round, slender, brown, covered in lenticels and longitudinal fissures.
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Landscape:
- Landscape Theme:
- Butterfly Garden
- Cottage Garden
- Winter Garden
- Design Feature:
- Border
- Foundation Planting
- Hedge
- Attracts:
- Bees
- Resistance To Challenges:
- Drought
- Problems:
- Weedy