Non-native Plants

Hairy Nightshade

Solanum villosum

USDA symbol: SOVI8

annual subshrub

Lower 48 states: non-native, naturalized

Meet hairy nightshade (Solanum villosum), a curious little plant that’s been quietly making itself at home across several U.S. states. This non-native member of the nightshade family brings a touch of European charm to American gardens, though it comes with some considerations worth exploring. Hairy nightshade is a forb herb—basically ...

Hairy Nightshade: A Quirky Non-Native with Orange Berries

Meet hairy nightshade (Solanum villosum), a curious little plant that’s been quietly making itself at home across several U.S. states. This non-native member of the nightshade family brings a touch of European charm to American gardens, though it comes with some considerations worth exploring.

What Exactly Is Hairy Nightshade?

Hairy nightshade is a forb herb—basically a soft-stemmed plant without woody tissue that dies back to the ground each year. Despite its somewhat intimidating family name, this particular nightshade is more curious than concerning. The plant can behave as either an annual or perennial depending on growing conditions, giving it flexibility in various climates.

You might also encounter this plant under several scientific synonyms, including Solanum alatum, Solanum luteum, or Solanum nigrum var. villosum, which can make identification a bit tricky for plant enthusiasts.

Where You’ll Find It Growing Wild

This European native has established itself in seven U.S. states: California, Florida, Maine, Massachusetts, New Hampshire, New Jersey, and Pennsylvania. It’s considered an introduced species that reproduces spontaneously in the wild, meaning it’s quite capable of taking care of itself once it gets going.

  • Species observed
  • No observations

The Look and Appeal

Hairy nightshade won’t win any showstopper of the year awards, but it has its own subtle charm. The plant produces small white flowers that give way to distinctive orange-yellow berries—quite different from the dark berries of its more famous (and infamous) nightshade relatives. Its compact, bushy growth habit makes it an interesting addition to wild gardens or naturalized areas.

Garden Role and Landscape Fit

This plant works best in:

  • Wild or naturalized garden areas
  • Herb gardens (for botanical interest rather than culinary use)
  • Areas where you want low-maintenance, self-seeding plants
  • Spaces that benefit from plants with interesting berries

Growing Conditions and Care

One of hairy nightshade’s best qualities is its easygoing nature. It thrives in full sun to partial shade and isn’t particularly fussy about soil quality—in fact, it tolerates poor soils quite well. The plant generally grows well in USDA hardiness zones 4-9, making it suitable for a wide range of climates.

Care requirements are minimal:

  • Plant in well-drained soil
  • Water occasionally during establishment
  • Expect self-seeding in favorable conditions
  • Little to no fertilizing needed

Benefits to Pollinators and Wildlife

The small white flowers do attract various pollinators, particularly smaller bees and flies. While not a pollinator powerhouse, every little bit helps in creating a diverse ecosystem in your garden.

Should You Plant It?

Here’s where things get interesting. Hairy nightshade isn’t invasive or noxious, so there’s no ecological alarm bell ringing. However, as a non-native species, it’s worth considering whether native alternatives might better serve your garden’s ecosystem.

If you’re drawn to plants with interesting berries, consider native alternatives like elderberry (Sambucus canadensis), spicebush (Lindera benzoin), or native viburnums. These provide similar visual interest while supporting local wildlife more effectively.

That said, if you already have hairy nightshade in your garden or you’re particularly drawn to this European curiosity, it can coexist peacefully with native plants in a mixed garden setting.

The Bottom Line

Hairy nightshade is one of those neutral plants—not particularly harmful, but not especially beneficial to local ecosystems either. It’s easy to grow, has some ornamental value, and won’t cause ecological havoc. Whether you choose to include it in your garden depends on your personal gardening philosophy and whether you prioritize native species or enjoy collecting interesting plants from around the world.

If you do decide to grow it, you’ll find it to be a low-maintenance addition that adds a touch of old-world botanical history to your landscape.

Solanum villosum 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. Solanum villosum is also known as:

Solanum alatum | USDA symbol: SOAL11
Solanum luteum | USDA symbol: SOLU9
Solanum luteum ssp. alatum Dostál | USDA symbol: SOLUA2
Solanum nigrum var. villosum | USDA symbol: SONIV4

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: Asteridae
Order: Solanales
Family: Solanaceae Juss. - Potato family
Genus: Solanum L. - nightshade

Species: Solanum villosum (L.) Mill. - hairy nightshade

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