Calendula officinalis – Pot Marigold

The following description concerns Calendula officinalis generally. Calendula officinalis is an annual with green, oblong to lance-shaped leaves and yellow or orange flower heads. Single and double forms occur within the species. It grows in moderately fertile, well-drained soil in sun, with some shade useful in hot weather. Removing spent heads may prolong flowering, and plants can self-seed.