North America Non-native Plant

Shortfruit Hedgemustard

Botanical name: Sisymbrium polyceratium

USDA symbol: SIPO2

Life cycle: annual

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Shortfruit Hedgemustard: A Lesser-Known Non-Native Annual If you’ve stumbled across the name shortfruit hedgemustard (Sisymbrium polyceratium), you’re probably wondering what exactly this plant is and whether it belongs in your garden. This annual forb is one of those plants that’s more likely to show up uninvited than to be deliberately ...

Shortfruit Hedgemustard: A Lesser-Known Non-Native Annual

If you’ve stumbled across the name shortfruit hedgemustard (Sisymbrium polyceratium), you’re probably wondering what exactly this plant is and whether it belongs in your garden. This annual forb is one of those plants that’s more likely to show up uninvited than to be deliberately planted, but understanding its characteristics can help you make informed decisions about your landscape.

What Is Shortfruit Hedgemustard?

Shortfruit hedgemustard is a non-native annual plant that belongs to the mustard family. As a forb, it’s an herbaceous plant without woody stems – think of it as the botanical equivalent of a one-year visitor that lacks the commitment of a shrub or tree. This introduced species has managed to establish itself in parts of the United States, reproducing on its own without human assistance.

Where You’ll Find It

Currently, shortfruit hedgemustard has been documented growing in Pennsylvania and Texas. Its limited distribution suggests it’s either a relatively new introduction or simply hasn’t found the right conditions to spread more widely across the country.

Garden Appeal and Landscape Role

Let’s be honest – shortfruit hedgemustard isn’t going to win any beauty contests in your garden. Like many members of the mustard family, it tends to have a rather unremarkable appearance that’s more functional than ornamental. Its role in most landscapes is typically that of an uninvited guest rather than a featured performer.

If you’re looking for plants with similar growth habits but better garden appeal, consider these native alternatives:

  • Native wild mustards and cresses that provide similar ecological functions
  • Regional native annuals that support local wildlife better
  • Indigenous forbs that offer more reliable beauty and ecological benefits

Growing Conditions and Care

While specific growing requirements for shortfruit hedgemustard aren’t well-documented, plants in the Sisymbrium genus are typically adaptable to various soil conditions. As an annual that naturalizes readily, it’s likely not particularly fussy about care requirements.

However, since this is a non-native species with unknown invasive potential, we’d recommend focusing your gardening efforts on native plants that provide better support for local ecosystems.

Wildlife and Pollinator Benefits

The wildlife benefits of shortfruit hedgemustard aren’t well-studied, which is another point in favor of choosing native alternatives. Native plants have co-evolved with local wildlife and pollinators over thousands of years, creating relationships that introduced species simply can’t replicate.

Should You Plant It?

Given that shortfruit hedgemustard is non-native and offers limited ornamental value, it’s not a plant we’d actively recommend for your garden. Instead, consider exploring native alternatives that can provide similar growth habits while supporting your local ecosystem more effectively.

If this plant shows up in your garden naturally, you can decide whether to keep it based on your gardening goals and local regulations. Just keep an eye on its behavior to ensure it doesn’t become problematic in your area.

The Bottom Line

Shortfruit hedgemustard represents one of those plants that exists more in the margins of gardening than at its center. While it’s not necessarily harmful, it’s also not bringing much to the party. Your garden real estate is valuable – why not fill it with native plants that offer beauty, ecological benefits, and support for local wildlife? Your local pollinators will thank you for it.

Shortfruit Hedgemustard

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Capparales

Family

Brassicaceae Burnett - Mustard family

Genus

Sisymbrium L. - hedgemustard

Species

Sisymbrium polyceratium L. - shortfruit hedgemustard

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