A couple of hundred species of annuals, biennials, and perennials make up this genus. They have simple leaves, which in some species are very ornamental. Flowers are tiny and star-shaped and bloom in summer. Small, reddish brown fruit comes next. Some species may be invasive, others are grown as herbs. Use in a border, herb garden, or butterfly garden.
Noteworthy CharacteristicsAll parts may cause stomach upset if eaten and the foliage may irritate skin. Various species of dock are used as larval food plants by a number of butterflies.
CareNeeds full sun and well-drained soil of moderate fertility.
PropagationSow seeds where they are to grow in spring. Plants also readily self-seed.
ProblemsSlugs, snails, rust, smut, leaf spots.