Aconitum has somewhere between 50 and 300 species depending on the taxonomist consulted.

This genus is known for its uniquely shaped flowers which resemble the hooded garment worn by ancient monks. Monkshoods generally grow in sun or shaded gardens and form tall (3-6 feet) flower spikes in the fall. Blooms are generally in shades of blue although some varieties have been developed with white or yellow flowers.

The roots, leaves and seeds of Aconitum are poisonous and very dangerous if eaten or if their juices get into scratches. They contain a narcotic alkaloid chemical called aconitin. Care should be taken when transplanting or handling monkshoods to avoid getting any of the sap from the plant into your mouth.

Monkshoods do best in partial shade and a cool, moist soil enriched with compost or leaf mold. However, they will also thrive in full sun if given enough soil moisture during the growing season. It is generally believed that monkshoods suffer severely when their roots are disturbed, so care should be taken when transplanting or dividing them in the garden.