Common Monkshood (Aconitum napellus)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers


Common Monkshood
Aconitum napellus

Tall stately spires of true blue flowers. Glossy dark green foliage 
Full sun with afternoon shade in soils that are moist but well drained. Moisture should be consistent but not overly wet and swampy. 
'Album' 3 feet, white flowers in July, August 
Mature Height
3-4 Feet
USDA Hardiness Zone
3 - 8 
Bloom Color
Bloom Season
September - October
Soil Conditions
Moist, Well-Drained
Exposure/Light Requirements
Partial Sun/Shade
Foliage Color
Pests and Problems

Environmental Damage

Fungal Disease

Additional pests and problems that may affect this plant:

Verticillium wilt, sclerotinia, leaf feeding caterpillars
Additional Notes
Plant tuberose roots in the fall and set the crowns just beneath the soil surface. Do not disturb established plants. Difficult to divide and transplant successfully. All parts of the plant are considered poisonous. 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