The tarragon companion plants are those that can be grown together with the tarragon plant, which belongs to the Asteraceae family. Some of the plants include oregano, garlic and rosemary.

Knowing which plants to grow alongside your tarragon plant is essential because some herb combinations may negatively affect the growth and development of the plant.
This article will enlighten you on the various good companion plants for tarragon.
“Companion plants sharing root zones can increase yield efficiency by 20%.”West Virginia University
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Best Tarragon Companion Plant Options
Tarragon companion plants also benefit from being grown close to this herb. The tarragon is referred to as the “nursing plant” as it enhances the health and growth that are grown around it.
If grown around edible crops, the tarragon increases its flavor. This plant exists in two major types, which are, the French tarragon which imitates the strong taste of licorice, and the Russian tarragon which doesn’t have a unique flavor.
1. Oregano

Oregano is a herb that belongs to the Lamiaceae family, which can also be called the “mint family.” The name of his plant is derived from the Greek words “ganos,” which is interpreted as joy, and “oros,” which means mountain.
Therefore, the Romans and Greeks relate oregano to happiness and joy. The plants grow well in sandy loamy soils.
2. Garlic

Planting herbs like garlic, along with the tarragon enhances mutual benefits between the two plants. The tarragon promotes the growth of garlic while the latter acts as a natural pest control strategy, especially against spider mites.
3. Lemon Verbena

Lemon verbena is one of the lemon-scented herbs that belong to the Verbenaceae family of plants. It is mainly grown together with the French tarragon. This companion planting herb is also known as the lemon beebrush.
4. Rosemary

The rosemary is one of the Mediterranean herbs that is listed among the best tarragon companion plants. This plant belongs to the Lamiaceae family of plants and is sometimes referred to as the Rosmarinus officinalis, which is its scientific name. It prefers being grown under the sun, and in soils whose pH ranges between 6.0 and 7.0.
5. Lemon Thyme

The plant is part of the mint family. It has been reported to exhibit mosquito-repellent attributes, though not to the same extent as the commercially available chemical one. The thyme is native to the rocky mountains that are located in the Mediterranean region.
6. Eggplant

The eggplant is one of the tarragon companion plants vegetables. Growing tarragon together with tomatoes or pepper is another example of herb and vegetable companion planting. The eggplant is native to Southeast Asia and is commonly known as the Guinea squash.
References
- Dan Drost. How to Grow Eggplant in Your Garden. Utah State University.
Retrieved from https://extension.usu.edu/yardandgarden/research/eggplant-in-the-garden - N. Mathlouthi, T. Bouzaienne, I. Oueslati, F. Recoquillay, M. Hamdi, M. Urdaci, R. Bergaoui. (01 March 2012). Use of rosemary, oregano, and a commercial blend of essential oils in broiler chickens: In vitro antimicrobial activities and effects on growth performance. Journal of Animal Science.
Retrieved from https://academic.oup.com/jas/article-abstract/90/3/813/4764532 - M. Kumar, J.S. Berwal. (01 February 1998). Sensitivity of food pathogens to garlic (Allium sativum). Journal of Applied Microbiology.
Retrieved from https://academic.oup.com/jambio/article/84/2/213/6723951
