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The Plant Structure of Marigolds

Marigolds (Tagetes spp.) are perennial or annual plants from the sunflower family used as bedding plants and in pots and borders. The flowers -- native to Central America and Mexico -- are broadly classified into three groups, each with distinct structure.

  1. French Marigolds

    • French marigolds (Tagetes patula) have compact, bushy growth with a mature height of 6 to 12 inches. The flowers bloom in shades of orange, yellow and bronze and have a diameter of about 2 inches. The plants have an extended bloom time that is interrupted only by cold weather and frost.

    African Marigolds

    • African marigolds (Tagetes erecta) are also commonly referred to as American marigolds. The plants grow up to 3 feet tall with larger sized blooms and shorter bloom period. Deadheading flowers on African marigold plants helps with blooming.

    Triploids

    • Triploid marigolds are the result of a cross between the African and French marigolds. The sterile hybrids have 3-inch flowers that bloom nonstop in a range of colors including yellow, gold and russet. All marigold varieties have similar dark colored, deeply divided foliage with distinct strong aroma.

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Growing Jasmine
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  2. Basil Plants in the Winter
  3. The Care of Dragonfruit Plants
  4. The Reproduction of Strawberry Plants
  5. How to Identify Plants in the UK
  6. The Structure of a Bulb Plant
  7. Bamboo Plants in the Northeast
  8. The Time to Plant Begonias
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  10. The Marigold Maravilla Plant
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  12. Identification of the Mint Plant

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