What is Mexican tarragon? Native to Guatemala and Mexico, this perennial, heat-loving herb is grown primarily for its flavorful, licorice-like leaves. The marigold-like flowers that show up in late summer and autumn are a delightful bonus. Most commonly called Mexican marigold (Tagetes lucida), it is known by a number of alternate names, such as false tarragon, Spanish tarragon, winter tarragon, Texas tarragon, or Mexican mint marigold. Read on for all you need to know about growing Mexican tarragon plants.
How to Grow Mexican Tarragon
Mexican tarragon is perennial in USDA plant hardiness zones 9 through 11. In zone 8, the plant is usually nipped by frost, but grows back in spring. In other climates, Mexican tarragon plants are often grown as annuals.
Plant Mexican tarragon in well-drained soil, as the plant is likely to rot in wet soil. Allow 18 to 24 inches (46-61 cm.) between each plant; Mexican tarragon is a large plant that can reach 2 to 3 feet (61-91 cm.) tall, with a similar width.
Although Mexican tarragon plants tolerate partial shade, the flavor is best when the plant is exposed to full sunlight.
Keep in mind that Mexican tarragon may reseed itself. Additionally, new plants are generated whenever the tall stems bend over and touch the soil.
Caring for Mexican Tarragon
Although Mexican tarragon plants are relatively drought tolerant, the plants are bushier and healthier with regular irrigation. Water only when the surface of the soil is dry, as Mexican tarragon won’t tolerate consistently soggy soil. However, don’t allow the soil to become bone dry.
Water Mexican tarragon at the base of the plant, as wetting the foliage may lead to various moisture-related diseases, especially rot. A drip system or soaker hose works well.
Harvest Mexican tarragon plants regularly. The more often you harvest, the more the plant will produce. Early morning, when the essential oils are well distributed through the plant, is the best time to harvest.
Mexican tarragon requires no fertilizer. Pests are generally not a concern.
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