Shrub
Thunberg Spirea
Spiraea thunbergii
Features
Loose clusters of white flowers in early to mid spring; bright green, narrow leaves give the shrub a fine texture in summer; autumn color is yellow-orange, but lasts only a short time.
Culture
Full sun; moist, well-drained soils are best, but tolerates dry sites; tolerates neutral soil pH (highly alkaline soils may lead to chlorosis).
Cultivars
- 'Fujino Pink'- Soft pink flowers.
- 'Ogon'- Yellow leaves.
Mature Height
3-5 Feet
Size
Small
Mature Width
3-5 Feet
Mature Form
Rounded to broad rounded
Native To:
China, Japan
USDA Hardiness Zone
5 - 8
Soil Conditions
Dry
Moist, Well-Drained
Tolerance
Dry Sites
Wind
Exposure/Light Requirements
Full Sun
Uses
Border
Specimen
Foliage Color
Green
Fall Foliage Color
Orange
Yellow
Pests and Problems
Environmental Damage
Fungal Disease
Herbicide Injury
Additional pests and problems that may affect this plant:
A number of problems are common on this species, but aphids tend to do the most damage.
Additional Notes
Related Resources
Home, Yard & Garden Pest Guide
The Home, Yard & Garden Pest Guide (C1391) provides is written for homeowners and other residents and provides nonchemical and current chemical recommendations for controlling pests associated with trees, shrubs, turf, flowers, groundcovers, vegetables, fruit, and houses. In addition, you'll find detailed information about integrated pest management, pesticide safety, and pesticide application and calibration techniques. This publication may be purchased at your local University of Illinois Extension Unit office, or by calling 800-345-6087, or by placing an order online (search for "C1391").
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Illinois Commercial Landscape and Turfgrass Pest Management Handbook
The Illinois Commercial Landscape and Turfgrass Pest Management Handbook (ICLT) is written for professional applicators and provides nonchemical and current chemical recommendations as well as application timing information for all major pests of turf, woody ornamentals and herbaceous ornamentals. This publication may be purchased at your local University of Illinois Extension Unit office, or by calling 800-345-6087, or by placing an order online (search for "ICLT").
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U of IL - Distance Diagnosis through Digital Imaging
A free plant, weed, insect and disease identification service available through your local University of Illinois Extension office. Center Educators or State Specialists review & respond to information and digital images submitted by local Extension office personnel. Some samples may require further examination or culture work (nominal fee involved) at the U of IL Plant Clinic.
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U of IL - Plant Clinic
Services include plant and insect identification, diagnosis of disease, insect, weed and chemical injury (chemical injury on field crops only), nematode assays, and help with nutrient related problems, as well as recommendations involving these diagnoses. Microscopic examinations, laboratory culturing, virus assays, and nematode assays are some of the techniques used in the clinic.
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