How to Grow Mint Mexican Marigold: Planting, Care, and Harvesting

Nov 03, 2026by David Schulze

Mint Mexican marigold (Tagetes lucida) is a tough, fragrant perennial herb known by several names, including Mexican tarragon, Texas tarragon, and sweet mace. Its narrow green leaves have a flavor similar to French tarragon, but the plant shrugs off the heat and humidity that defeat true tarragon, and its golden-yellow flowers carry the display into fall. It was even designated a Texas Superstar plant for its reliability in tough conditions. In cold-winter climates it is grown as an annual, but in warm regions it returns year after year.

When to Plant Mint Mexican Marigold

Start seeds indoors six to eight weeks before your last frost date, or direct sow in the garden after frost danger has passed. Transplant young plants outside after the last frost. Gardeners in mild-winter regions can also set out transplants through fall while the soil is still warm.

How to Plant Mint Mexican Marigold Seeds

Sow seeds about an eighth of an inch deep in a seed-starting mix, and expect germination in roughly five to fifteen days. Choose a spot in full sun; the plant tolerates partial shade, though flowering will be somewhat reduced. Well-drained soil is the one non-negotiable requirement, since consistently wet ground leads to root rot, but the plant otherwise tolerates many soil types, including clay and sand. When seedlings are several inches tall, pinch back the tips to promote branching. Space plants roughly eight to twelve inches apart, or follow your packet's directions.

Caring for Mint Mexican Marigold Plants

Water regularly until plants are established. After that, they are moderately drought and heat tolerant and do best with occasional deep watering, especially during hot, dry spells. Water at the base of the plant and avoid keeping the soil soggy. Skip heavy fertilizing: over-fertilization produces lush, weakly flavored growth with few flowers. Few pests trouble this herb, though slugs and snails can nibble young seedlings.

Harvesting Mint Mexican Marigold

Harvest the leaves throughout the growing season and use them fresh or dried. Regular harvesting encourages the plant to produce more. The anise-like leaves work as a tarragon substitute in the kitchen, and the golden-yellow flowers keep blooming into late fall, tolerating light frosts along the way.

Frequently Asked Questions

Is mint Mexican marigold the same as tarragon?

No, but it is a close stand-in. Its leaves taste similar to French tarragon, which is why it is also called Mexican or Texas tarragon, and it handles heat and humidity far better than true tarragon does.

Will mint Mexican marigold come back every year?

In warm-winter regions, roughly USDA zones 8 through 11, it grows as a perennial. A hard freeze may kill it to the ground, but the plant usually recovers in spring. In colder climates, grow it as an annual or dig it in fall and overwinter it indoors.

Why is my plant growing lots of leaves but few flowers?

Too much fertilizer encourages lush foliage at the expense of blooms, and too much shade can also reduce flowering. Grow it in full sun with a light hand on feeding.

Enjoying Mint Mexican Marigold

This versatile herb fits herb gardens, borders, and containers alike, pairing well with vegetables and other sun-loving plants. Its tarragon-like leaves and bright fall flowers make it as useful in the kitchen as it is attractive in the bed.