Tanacetum vulgare crispum - Hardy herbaceous perennial. 30-50 cms height. Full sun to part shade. Green fern like foliage. Yellow button like flowers. Medicinal plant. Prune to maintain shape. Drought tolerant once established. Dried leaves and flowers are used to repel ants and mice. Flowers attractive to bees and butterflies. Curly tansy has a fast growth rate, which can make it invasive. Grows well in pots.