North America Native Plant

Bearded Swallow-wort

Botanical name: Cynanchum barbigerum

USDA symbol: CYBA

Life cycle: perennial

Habit: vine

Native status: Native to the lower 48 states  

Synonyms: Metastelma barbigerum Scheele (MEBA4)   

Bearded Swallow-wort: A Hidden Gem for Texas Native Gardens If you’re looking to create an authentic Texas native garden that truly supports local wildlife, you might want to get acquainted with bearded swallow-wort (Cynanchum barbigerum). While this humble perennial herb won’t win any beauty contests, it’s got some serious credentials ...

Bearded Swallow-wort: A Hidden Gem for Texas Native Gardens

If you’re looking to create an authentic Texas native garden that truly supports local wildlife, you might want to get acquainted with bearded swallow-wort (Cynanchum barbigerum). While this humble perennial herb won’t win any beauty contests, it’s got some serious credentials when it comes to supporting the local ecosystem.

What Exactly Is Bearded Swallow-wort?

Bearded swallow-wort is a native Texas perennial that belongs to the milkweed family. As a forb (that’s garden-speak for a non-woody flowering plant), it’s the kind of unassuming plant that might not catch your eye at first glance, but plays an important supporting role in nature’s grand theater.

You might also see this plant listed under its former scientific name, Metastelma barbigerum, if you’re browsing older gardening references or botanical texts.

Where Does It Call Home?

This Texas native is quite the homebody – it’s found exclusively in the Lone Star State. While it’s native to the lower 48 states as a whole, its natural range is concentrated in Texas, where it has adapted perfectly to the local climate and soil conditions.

Why Consider Planting Bearded Swallow-wort?

Let’s be honest – you’re probably not planting this one for its stunning visual impact. Bearded swallow-wort is more of a behind-the-scenes player in the garden world. Here’s what it brings to the table:

  • Wildlife Support: Large animals get 5-10% of their diet from this plant, while birds contribute 2-5% of their diet from it
  • Native Plant Authenticity: Perfect for gardeners committed to using only indigenous species
  • Low Maintenance: Once established, it’s quite self-sufficient
  • Pollinator Benefits: As a member of the milkweed family, it provides nectar for various native pollinators

What Kind of Garden Is This Plant Right For?

Bearded swallow-wort isn’t meant for formal flower borders or showcase plantings. Instead, consider it for:

  • Native wildlife habitat gardens
  • Prairie restoration projects
  • Low-water xeriscape designs
  • Natural or wild garden areas
  • Educational native plant displays

Growing Conditions and Care

One of the best things about native plants is that they’re already perfectly adapted to local conditions. Bearded swallow-wort thrives in USDA hardiness zones 8-10, which covers most of Texas beautifully.

This drought-tolerant perennial prefers:

  • Well-draining soils (it doesn’t like wet feet)
  • Full sun to partial shade
  • Minimal supplemental watering once established
  • Very little fertilization – it’s adapted to natural soil conditions

Planting and Care Tips

The beauty of working with native plants like bearded swallow-wort is their low-maintenance nature. Here’s how to set them up for success:

  • Plant in spring after the last frost date
  • Space plants according to their mature spread (research specific spacing requirements)
  • Water regularly during the first growing season to establish roots
  • Once established, rely on natural rainfall
  • Avoid over-fertilizing – natives prefer lean soils
  • Allow plants to go to seed to support wildlife and natural propagation

The Bottom Line

Bearded swallow-wort isn’t going to be the star of your garden Instagram posts, but if you’re serious about creating habitat for Texas wildlife and supporting native ecosystems, it deserves a spot in your landscape. Think of it as the reliable character actor of the native plant world – not flashy, but absolutely essential to the overall production.

For gardeners focused primarily on ornamental appeal, you might want to pair this with showier native companions. But for those committed to authentic native landscaping and wildlife support, bearded swallow-wort is a worthy addition to your plant palette.

Wildlife Status

Want to attract wildlife or keep hungry critters away from your garden? Understanding the relationship between plants and wildlife is key. While plant tags may indicate deer and rabbit resistance, they don't tell the full story. Every gardener has experienced the disappointment of purchasing "deer-resistant" plants only to find them nibbled to the ground!

The extent to which plants are resistant to animal browsing is a matter of degree. Likewise, the extent to which a plant attracts wanted visitors also varies. Whether you want a garden full or free of wildlife, learning about interactions between a plant and wild animals can help you make smarter choices for the garden you desire.

As shown below Shrubby Indian Mallow isn't a large food source for animals or birds. You can confidently add this plant to your garden and rest assured knowing it's unlikely to be devoured by four-legged visitors.

Small animals

not a food source

not a source of cover

Large animals

5-10% of diet

Infrequently used as cover

Terrestrial birds

2-5% of diet

Sparsely used as cover

Water birds

not a food source

not a source of cover

Sources:

Everitt, J.H., D.L. Drawe, and R.I. Lonard. 1999. Field guide to the broad leaved herbaceous plants of South Texas used by livestock and wildlife. Texas Tech University Press. Lubbock.

Bearded Swallow-wort

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Gentianales

Family

Asclepiadaceae Borkh. - Milkweed family

Genus

Cynanchum L. - swallow-wort

Species

Cynanchum barbigerum (Scheele) Shinners - bearded swallow-wort

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