North America Native Plant

Twining Snoutbean

Botanical name: Rhynchosia tomentosa

USDA symbol: RHTO3

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Twining Snoutbean: A Charming Native Groundcover for Southern Gardens If you’re looking for a low-maintenance native plant that brings both charm and ecological value to your garden, meet the twining snoutbean (Rhynchosia tomentosa). This delightful southeastern native might not win any beauty contests, but it’s got personality in spades and ...

Twining Snoutbean: A Charming Native Groundcover for Southern Gardens

If you’re looking for a low-maintenance native plant that brings both charm and ecological value to your garden, meet the twining snoutbean (Rhynchosia tomentosa). This delightful southeastern native might not win any beauty contests, but it’s got personality in spades and plays an important role in supporting local wildlife.

What Makes Twining Snoutbean Special?

Twining snoutbean is a perennial forb—basically a soft-stemmed plant without woody tissue—that brings a relaxed, naturalistic feel to any garden space. True to its name, this plant has a twining growth habit, meaning it likes to weave itself through other plants or climb up small structures. Think of it as nature’s own living ribbon.

The plant produces clusters of small, bright yellow flowers that look like tiny pea blossoms (which makes sense, since it’s in the legume family). These cheerful blooms appear against a backdrop of soft, heart-shaped leaves covered in fine hairs that give them a velvety, grayish-green appearance.

Where Does It Call Home?

This southeastern native has quite an impressive range across the lower 48 states. You’ll find twining snoutbean naturally growing in Alabama, Arkansas, Delaware, District of Columbia, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Texas, Virginia, and West Virginia.

Why Your Garden (and Local Wildlife) Will Love It

Here’s where twining snoutbean really shines—it’s a wildlife magnet. Research shows that this humble plant provides 5-10% of the diet for:

  • Large animals like deer
  • Small mammals such as rabbits and rodents
  • Various terrestrial birds

The flowers also attract bees, butterflies, and other pollinators, making it a valuable addition to any wildlife-friendly garden. While animals don’t typically use it for cover, they certainly appreciate it as a reliable food source.

Perfect Garden Spots for Twining Snoutbean

This adaptable native works beautifully in several garden settings:

  • Native plant gardens: A natural choice for authentic regional plantings
  • Wildlife habitats: Essential for supporting local fauna
  • Woodland edges: Thrives in the transition zone between forest and open space
  • Natural areas: Perfect for low-maintenance, naturalistic landscapes

Its twining nature makes it an excellent groundcover that can also climb through small shrubs or up simple structures, adding vertical interest without being aggressive.

Growing Conditions and Care

One of the best things about twining snoutbean is how easygoing it is. This plant thrives in USDA hardiness zones 7-10, making it perfect for most southeastern gardens.

Light requirements: Partial shade to full sun—it’s quite flexible

Soil needs: Tolerates various soil types, though well-draining soil is preferred

Water requirements: Drought tolerant once established, making it perfect for low-water gardens

Planting and Care Tips

Growing twining snoutbean is refreshingly straightforward:

  • Plant in spring after the last frost
  • Space plants 2-3 feet apart to allow for spreading
  • Water regularly during the first growing season to help establish roots
  • Once established, minimal watering needed
  • Little to no fertilizer required—it’s a legume, so it fixes its own nitrogen
  • May self-seed and spread via underground rhizomes
  • Virtually pest and disease free

Is Twining Snoutbean Right for Your Garden?

Consider adding twining snoutbean to your garden if you:

  • Want to support native wildlife
  • Prefer low-maintenance plants
  • Live in the southeastern United States
  • Enjoy naturalistic garden styles
  • Need a groundcover that can also climb
  • Want to attract pollinators

While it may not have the showstopping blooms of some garden favorites, twining snoutbean offers something perhaps more valuable: a genuine connection to your local ecosystem and a plant that practically takes care of itself once established.

In our quest for picture-perfect gardens, sometimes the most rewarding plants are the quiet workhorses like twining snoutbean—native, beneficial, and beautifully adapted to thrive right where you live.

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

5-10% of diet

Infrequently used as cover

Large animals

5-10% of diet

Infrequently used as cover

Terrestrial birds

5-10% of diet

Infrequently used as cover

Water birds

not a food source

not a source of cover

Sources:

Miller, J.H., and K.V. Miller. 1999. Forest plants of the southeast and their wildlife uses. Southern Weed Science Society.

Twining Snoutbean

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

Rhynchosia Lour. - snoutbean

Species

Rhynchosia tomentosa (L.) Hook. & Arn. - twining snoutbean

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