Turtlehead are medium sized perennials with unique flower clusters that prefer damp soils. When located in areas with direct sunlight, a layer of mulch can help to maintain consistent soil moisture. When grown in heavily shaded areas, the rigid stems may fall and should be given some support. Cutting back the stems to a shorter height in spring can reduce the overall height and may help the stems to remain upright in heavy shade. These perennials spread through the roots that slowly creep outwards.
Turtlehead rarely encounter serious disease or insect issues. Mildews can occur in dryer soils with poor air circulation.