The annual Lavatera of gardens is L. trimestris L., the Rose, Royal or Regal Mallow. A number of varietal forms have been described. The white form is sometimes described as var. Another varietal form is var. brachypoda Perez Lara. L. trimestris is cultivated as an annual.
Seed is sown indoors in early spring, or outdoors in late spring.
L. trimestris produces good seed in temperate climates, and sometimes self-sows. The cultivated strains are generally smaller, have larger flowers, and show a wider variety of colours. Dutch Beauty' was bred for the cut flower trade. A reference to a cultivar 'Silver Chalice' has been encountered. This may be the same as 'Silver Cup'.