Tagetes tenuifolia, commonly known as Lemon Marigold, is an annual herb native to the scrub and open woodlands of Mexico, Central and South America. It can grow up to 50 cm (20 in) tall and is characterized by its deeply divided leaves, each less than 3 cm (1+1⁄4 in) long. The plant is notable for its numerous small, bright yellow flower heads that form a flat-topped array, with each head comprising five ray florets and 7–9 disc florets. The flowers, which are edible, have a lemon-like flavor and are often used as a garnish. Lemon Marigold typically blooms in the middle of summer, with its showy yellow flowers adding a splash of color to gardens.

Lemon Marigold is valued for its ease of cultivation and hardiness, withstanding minor frosts. It is well-suited to sunny positions and fairly well-draining soil, though overly fertile soil may lead to lush foliage at the expense of flower production. The plant is popular for urban planting, border planting, and as a companion plant due to its insect-repelling properties. It requires full sun, moderate watering, and medium drainage for optimal growth. Seeds and plants are widely available at nurseries. Potential issues include susceptibility to powdery mildew and root rot if overwatered or planted in poorly draining soils.CC BY-SA 4.0