Non-native Plants

Medick

Medicago monantha

USDA symbol: MEMO10

annual forb

Lower 48 states: non-native, naturalized

If you’ve stumbled across the name medick in your gardening adventures, you might be wondering what exactly this little plant brings to the table. Medicago monantha, commonly known as medick, is a non-native annual that has quietly established itself in parts of the United States, particularly in Massachusetts. Medick is ...

Medick (Medicago monantha): A Small but Sturdy Non-Native Annual

If you’ve stumbled across the name medick in your gardening adventures, you might be wondering what exactly this little plant brings to the table. Medicago monantha, commonly known as medick, is a non-native annual that has quietly established itself in parts of the United States, particularly in Massachusetts.

What Is Medick?

Medick is an annual forb, which is just a fancy way of saying it’s a non-woody plant that completes its life cycle in one year. As a member of the legume family, this small plant has the neat trick of fixing nitrogen in the soil through its root system – basically, it’s nature’s little fertilizer factory.

Also known by its synonym Trigonella neoana, medick is originally from Mediterranean regions but has found its way to North American shores and decided to stick around.

Where You’ll Find Medick

Currently, Medicago monantha has been documented growing wild in Massachusetts, though it may be present in other areas as well. This hardy little plant has proven capable of reproducing spontaneously without human intervention.

  • Species observed
  • No observations

Should You Grow Medick in Your Garden?

Here’s where things get interesting. While medick isn’t considered invasive or harmful, it’s also not a native species. If you’re committed to supporting local ecosystems with native plants, you might want to consider native alternatives instead.

However, if you’re looking for a low-maintenance annual that can help improve soil nitrogen levels, medick does have some practical benefits:

  • Nitrogen fixation improves soil fertility
  • Small yellow flowers provide nectar for tiny pollinators
  • Low maintenance once established
  • Good for naturalized areas or meadow gardens

Growing Conditions and Care

If you decide to give medick a try, you’ll find it’s fairly easygoing. Like many Mediterranean plants, it prefers:

  • Full sun exposure
  • Well-draining soils
  • Minimal supplemental watering once established

As an annual, medick will complete its life cycle in one growing season, but it may self-seed if conditions are right.

Consider Native Alternatives

While medick isn’t problematic, supporting native plant communities is always a great choice for local wildlife and ecosystems. Consider these native alternatives that offer similar benefits:

  • Wild lupine for nitrogen fixation and pollinator support
  • Partridge pea for annual color and soil improvement
  • Native clovers for ground cover and wildlife benefits

The Bottom Line

Medick is a perfectly harmless little plant that won’t cause trouble in your garden, but it’s not going to wow you with spectacular blooms or provide significant wildlife benefits either. If you’re managing a naturalized area and want something that fixes nitrogen while asking for very little in return, medick might fit the bill. Just remember that choosing native plants when possible helps create stronger, more resilient local ecosystems.

Medicago monantha is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Medicago monantha is also known as:

Trigonella neoana | USDA symbol: TRNE8

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Rosidae
Order: Fabales
Family: Fabaceae Lindl. - Pea family
Genus: Medicago L. - alfalfa

Species: Medicago monantha (C.A. Mey.) Trautv. - medick

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA