Tagetes erecta seed | Aztec Marigold, Crackerjack
LATIN NAME: Tagetes erecta COMMON NAME: Aztec Marigold, Crackerjack
Botanical Profile
Aztec marigold is native to Mexico and Central America, growing as a robust annual with finely divided, aromatic foliage and large, densely double flower heads in vivid shades of gold, orange and yellow. The Crackerjack selection is prized specifically for its exceptionally large flower heads on strong, sturdy stems, standing well above the average size typical of the wider species.
Science & Conservation
Aztec marigold roots release compounds into the surrounding soil that suppress root-knot nematodes, a finding well established in agricultural nematology research and widely applied in companion planting and cover cropping strategies aimed at reducing nematode pressure ahead of susceptible vegetable crops. The species is also the primary source of lutein extracted for commercial use in poultry feed, valued for enhancing the yellow colour of egg yolks and chicken skin, a significant agricultural application studied within animal nutrition science.
Landscape & Practical Uses
Aztec marigold holds deep cultural significance in Mexico, where it is the traditional cempasúchil flower central to Día de los Muertos celebrations, believed to guide spirits home with its vivid colour and scent, a tradition that continues to shape enormous seasonal demand for the flower across Mexico each autumn. In the vegetable garden, planting it as a companion crop offers genuine, research-supported benefit in suppressing root-knot nematode populations ahead of susceptible crops such as tomatoes.
Growing From Seed
Sow the seed into a loose, well-drained mix and keep it warm and consistently moist, since this species germinates most reliably with steady warmth. Full sun suits this fast-growing annual well, and it typically flowers within a couple of months of a spring sowing, providing reliable colour right through to first frost.
Our Take
We think this is one of the genuinely dual-purpose plants in our whole catalogue – it looks spectacular and does real, measurable work suppressing nematodes in a vegetable bed, which is a combination we would recommend to nearly any vegetable gardener.
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