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Marigold

Marigold is a common name for several flowering plants, most often species in the genus Tagetes in the family Asteraceae.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Marigold is a common name for several flowering plants, most often species in the genus Tagetes in the family Asteraceae. In horticulture, marigolds are valued for their bright orange, yellow, and red flowers and are widely grown as ornamental bedding plants and companion plants. The name also applies to unrelated plants such as Calendula officinalis, the pot marigold.

Taxonomy and naming

Marigold is a common name applied primarily to the genus Tagetes in the family Asteraceae. The name also extends to other unrelated plants, including Calendula officinalis, so the common name alone is not taxonomically precise.

Description

Tagetes marigolds are flowering herbs with bright, daisy-like blooms, usually in yellow, orange, or red tones. Depending on species and growing conditions, they may be annuals or short-lived perennials and typically range from about 1 to 4 feet tall.

Distribution and cultivation

Marigolds are native to tropical and subtropical parts of the Americas and are now grown widely around the world. They are popular garden plants because they are easy to grow, bloom reliably, and tolerate sunny sites.

Uses

Marigolds are mainly ornamental, but they are also used in companion planting and integrated pest management. Some species and cultivars have edible flowers and are used in food coloring, dyes, and traditional decorative practices.

Key facts

  • Marigold most commonly refers to species in the genus Tagetes in the daisy family Asteraceae.
  • Tagetes includes about 49 to 50 species native to the Americas, especially Mexico, Central America, and South America.
  • Common garden marigolds are usually grown as annual ornamentals with bright yellow, orange, or red flowers.
  • The term marigold can also refer to Calendula officinalis (pot marigold), which is unrelated to Tagetes.
  • Marigolds are used in gardens and integrated pest management due to their strong scent and pest-repellent associations.
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Canadian context

Marigolds are widely cultivated in Canadian gardens as annual bedding plants, especially for their bright flowers and relatively easy care. Canadian horticulture sources also note their use in ornamental planting and pest-management contexts.[5]

Frequently asked questions

What is a marigold?
Most often, marigold refers to flowering plants in the genus Tagetes, in the family Asteraceae.
Are all marigolds the same plant?
No. The name also applies to unrelated plants such as Calendula officinalis, the pot marigold.
Where do marigolds come from?
Tagetes marigolds are native to the Americas, especially Mexico, Central America, and South America.
How many species of marigold are there?
Sources describe Tagetes as having about 49 to 50 species.
What colours do marigolds have?
They are commonly yellow, orange, red, and related shades.
Why are marigolds planted in gardens?
They are widely grown for their flowers and are also used in companion planting because of their strong scent and association with pest control.

References

  1. Britannicahttps://www.britannica.com/plant/marigold
    Supports: Marigold as Tagetes, genus size, native range, and common-name ambiguity.
  2. North Carolina Extension Gardener Plant Toolboxhttps://plants.ces.ncsu.edu/plants/tagetes/
    Supports: Tagetes as marigolds, family, species count, native range, growth habit, and name origin.
  3. Port St. Lucie Botanical Gardenshttps://www.pslbg.org/marigold/
    Supports: Common name, scientific name, family, origin, and typical height.
  4. Wisconsin Horticulturehttps://hort.extension.wisc.edu/articles/marigolds/
    Supports: Scientific name, family, ornamental annual type, native range, and garden use.
  5. Britannica Kidshttps://kids.britannica.com/kids/article/marigold/353429
    Supports: Native range, annual habit, size, colour, blooming season, and pest-repellent use.
  6. American Meadowshttps://www.americanmeadows.com/blogs/wildflower-seeds/all-about-marigolds
    Supports: Native range, size range, and general garden characteristics.
  7. Swansons Nurseryhttps://www.swansonsnursery.com/blog/marigolds
    Supports: Common cultivated types and uses including edible flowers and dyes.
  8. Wikipediahttps://en.wikipedia.org/wiki/Calendula_officinalis
    Supports: Pot marigold as Calendula officinalis and common-name usage.