False Spirea (Astilbe x arendsii)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers


False Spirea
Astilbe x arendsii

Astilbe 'Veronica Klose'
Astilbe 'Veronica Klose'
Excellent plants for shady moist sites. Forms neat mounds. Fern like foliage is glossy green or reddish bronze in color. Excellent border plants and when used as a mass planting. showy plume like flowers 
Astilbes need a high organic matter soil that retains some moisture. Dry, sunny locations lead to plants with poor foliage and few flowers. Astilbes are heavy feeders. Fertilize in spring and again in the fall when they are setting flower buds.  

'Red Sentinel' 18-24 inches tall red flowers

'Glow' 1-2 feet tall red flowers

'Rheinland' 2 feet tall pink flowers

'Deutschland' 3 feet tall white flowers

'Ostrich Plume' 3 feet tall pink flowers

Numerous other cultivars availabel in the Chinensis, Japonica, Thunbergia and Simplicifolia groups.

Mature Height
18 Inches - 4 Feet
USDA Hardiness Zone
4 - 9 
Bloom Color
Bloom Season
June - July
Soil Conditions
Moist, Well-Drained
Exposure/Light Requirements
Partial Sun/Shade
Foliage Color
Pests and Problems

Bacterial Disease

Environmental Damage

Fungal Disease

Additional pests and problems that may affect this plant:

Tarnished plant bug, xanthomonus , powdery mildew, drought

Additional Notes
Keep well watered during July and August. They benefit from dividing every 3 years. Require very well-drained soils during the winter. Fertilize with high nitrogen fertilizer in October to aid in flower bud formation for next season. Reported to be deer and rabbit resistant.


Related Resources
Home, Yard & Garden Pest Guide
Illinois Commercial Landscape and Turfgrass Pest Management Handbook
U of IL - Distance Diagnosis through Digital Imaging
U of IL - Plant Clinic