Tagetes erecta
Mexican Marigold
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Mexican Marigold (Tagetes erecta) - Description
This version of the marigold seems to have a bit of a muddled past when it comes to its history. Although it is called either the American Marigold or the African Marigold its true origin is actually from Mexico where explorers in the 1500's brought the seed back to Spain. From there these marigolds were introduced quickly to northern Africa where they naturalized quite comfortably. Soon after these Marigolds were 'Rediscovered' and quickly were named the African Marigold. This just shows how popular and quickly these plants caught on with early horticulturists. Much larger and flamboyant than its smaller, more graceful cousin the French Marigold, it is a mainstay in the modern garden with its bright colors and tall stature. The blooms are large (up to 5" wide), densely petaled, and very pompom-like in its look. These will adorn your garden from late spring all the way into late fall for a full season of low maintenance and yet explosive color!
Mexican Marigold (Tagetes erecta) - Blooming
Flowers from early summer until frost. To get earlier blooms, start seeds indoors earlier in the season. Deadhead to lengthen the flowering period.
Mexican Marigold (Tagetes erecta) - Growth
Bushy annuals and herbaceous perennials. Tagetes does best with full sun in sites with hot climates. African marigolds work best for formal bedding. The French, Triploid, and Signet marigolds are nice for the edge of a mixed border. All make good container plants. The flowers are suitable for cutting as they are long-lived.
Mexican Marigold (Tagetes erecta) - Planting
Easily propagated from seed. Sow seed in the ground in spring, when temperatures are at least 70°F (21°C).
Mexican Marigold (Tagetes erecta) - Pest
Whiteflies, spider mites, and leaf miners. Tagetes is also susceptible to powdery mildew, damping off, root rot, leaf spot, bacterial leaf spot, and gray mold.
Mexican Marigold (Tagetes erecta) - Interesting facts
Tagetes is native to the hot regions of New Mexico to Argentina, with one species endemic to Africa. The annuals are strong scented. The foliage may aggravate the skin upon contact.
Mexican Marigold (Tagetes erecta) - Soil and irrigation
Does well with fast-draining soils. When water avoid overhead irrigation (especially for the species T. erecta, African Marigold) as the taller stems may break from the weight of the water. Irrigate by flooding the soil or avoid the tall stems. Water liberally during drought. The flowerheads of African Marigolds rot in wet weather conditions.
