North America Non-native Plant

Sweetclover

Botanical name: Melilotus suaveolens

USDA symbol: MESU12

Native status: Not native but doesn't reproduce and persist in the wild

Sweetclover (Melilotus suaveolens): A Fragrant Addition to Your Garden If you’ve ever caught a whiff of honey-sweet fragrance drifting across a meadow, you might have encountered sweetclover. Melilotus suaveolens, commonly known as sweetclover or Daghestan sweet-clover, is a charming legume that brings both beauty and practical benefits to the garden ...

Sweetclover (Melilotus suaveolens): A Fragrant Addition to Your Garden

If you’ve ever caught a whiff of honey-sweet fragrance drifting across a meadow, you might have encountered sweetclover. Melilotus suaveolens, commonly known as sweetclover or Daghestan sweet-clover, is a charming legume that brings both beauty and practical benefits to the garden landscape.

What Makes Sweetclover Special?

This delightful plant produces clusters of small, bright yellow flowers arranged in slender spikes that dance above its characteristic three-leaflet foliage. The flowers aren’t just pretty to look at—they release a sweet, vanilla-like fragrance that’s particularly noticeable in the evening hours. It’s this aromatic quality that earned the plant its sweet moniker.

Where Does Sweetclover Come From?

Sweetclover hails from Central Asia, particularly the Caucasus region. While it’s not native to North America, it has found its way into various climates and growing conditions across the continent.

Garden Appeal and Landscape Role

Sweetclover serves multiple purposes in the garden beyond its ornamental value:

  • Acts as a natural soil improver by fixing nitrogen through its root system
  • Provides excellent habitat and food sources for wildlife
  • Works well in naturalized meadow gardens and restoration projects
  • Offers a cottage garden charm with its informal, slightly wild appearance

Growing Conditions and Care

One of sweetclover’s best qualities is its easygoing nature. This adaptable plant thrives in:

  • Full sun locations (at least 6 hours of direct sunlight daily)
  • Well-drained soils of various types, including poor or sandy conditions
  • USDA hardiness zones 4 through 8
  • Areas with minimal irrigation once established

Planting and Maintenance Tips

Getting sweetclover established in your garden is refreshingly straightforward:

  • Direct seed in either spring after the last frost or in fall
  • Scatter seeds over prepared soil and lightly rake in
  • Water gently until germination occurs
  • Once established, the plant requires minimal care and is quite drought-tolerant

Wildlife and Pollinator Benefits

Sweetclover is a pollinator magnet, attracting bees, butterflies, and other beneficial insects with its nectar-rich blooms. The extended flowering period provides a reliable food source throughout much of the growing season, making it valuable for supporting local pollinator populations.

Should You Plant Sweetclover?

While sweetclover can be a lovely addition to informal garden spaces, it’s worth considering native alternatives that provide similar benefits while supporting local ecosystems. Native clovers, wild bergamot, or native legumes specific to your region might offer comparable soil-building properties and pollinator support with the added advantage of being perfectly adapted to your local conditions.

If you do choose to grow sweetclover, keep an eye on its spread and consider it best suited for larger, more naturalized areas where its self-seeding tendencies won’t become problematic. With its sweet fragrance, cheerful flowers, and beneficial properties, it can certainly earn its place in the right garden setting.

Sweetclover

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Melilotus Mill. - sweetclover

Species

Melilotus suaveolens Ledeb. - sweetclover

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