| Description | Blue Valley Monkshood (Aconitum napellus ) is a taller, hardy, late-blooming perennial bearing racemes of hooded, dark purple-blue flowers in mid-to-late summer. All parts are toxic. |
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| Pronunciation | (ak-CO-nie-tum)(na-PEL-lus) |
| Plant Type | All Plants, Perennials Hardy |
| Hardiness Zone | 3-8 |
| Sunlight | prefers partial sun, tolerates full if the soil is moist |
| Moisture | average to moist, never dry |
| Soil & Site | prefers moist soils with abundant organic matter |
| Flowers | The blue, violet, violet-blue flower is covered with a small helmet or hood (galea) with a beaked front. It is an inflorescence called a raceme. |
| Fruit | The fruit is an aggregate of follicles with many seeds. |
| Leaves | palmately veined, deeply divided to the center |
| Stems | It has stiff, erect, unbranched, leafy stems, and taller stems may need to be staked. |
| Dimensions | Reaches 30-40 inches tall. |
| Maintenance | Slow to recover from division, so it's best left in place. It may need staking. Remember to wash all equipment and hands after working with the plant. It can be cut back to control height, but this will mean the loss of the larger terminal buds. Wear gloves when handling this plant. |
| Propagation | division |
| Misc Facts | A very toxic plant ingestion of or even touching the sap can cause cardiac or respiratory failure The leaves and roots contain aconitin a narcotic alkaloid. Wash hands after handling this plant. Native to Europe. |
| Notes & Reference | #40-Manual of Herbaceous Plants (Steven Stills), #54-The Well Tended Garden (DiSabato-Aust), #79-Perennials For Every Purpose (Larry Hodgson), #275-North Carolina Botanical Garden ((https://plants.ces.ncsu.edu/plants/) |
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