— Plant your Aconitum (or Monkshood) bare roots outside during spring or autumn.
— Select an area with moderately fertile, humus-rich soil, that is in full sun or part shade.
— Set plants 50-70cm apart or individually in large containers.
— Select an area with moderately fertile, humus-rich soil, that is in full sun or part shade; avoid any soil that becomes waterlogged.
— If growing Monkshood in a pot, use well-drained soil mix of equal parts loam, leaf mould (or soil-less compost).
— Water-in after planting and, while in growth, do not let the soil become dry.
— For best foliage and flowers, apply a balanced fertiliser in April and again in July.
— Deadhead as necessary, to prolong the flowering season.
— After several years, lift and divide congested clumps in autumn or spring.
— Read further general instructions about planting bare-root perennials