Do calendulas grow each year or are they just an annual plant? I am growing some calendulas. I understand that they do better if deadheaded regularly. Do they need cutting back in winter and then they come again, or are they just an annual and need to be replaced each year? Thanks.
Calendulas are classified as "Annuals or short-lived perennials." It's winter survival is poor in colder regions nor does it tolerate extreme heat. However, this doesn't mean you can't try and see what happens - I would go ahead and cut it back and see if it comes back the following spring.
For more information on growing calendulas, please visit the following link: