North America Non-native Plant

Fringed Dodder

Botanical name: Cuscuta suaveolens

USDA symbol: CUSU

Life cycle: perennial

Habit: vine

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

Fringed Dodder: A Parasitic Plant You Probably Don’t Want in Your Garden Meet fringed dodder (Cuscuta suaveolens), one of nature’s more unusual characters. This perennial plant has quite the reputation in gardening circles – and not necessarily for good reasons. If you’ve ever wondered about those strange orange, thread-like vines ...

Fringed Dodder: A Parasitic Plant You Probably Don’t Want in Your Garden

Meet fringed dodder (Cuscuta suaveolens), one of nature’s more unusual characters. This perennial plant has quite the reputation in gardening circles – and not necessarily for good reasons. If you’ve ever wondered about those strange orange, thread-like vines that seem to strangle other plants, you might be looking at this peculiar species.

What Makes Fringed Dodder Special (Or Problematic)

Fringed dodder is what botanists call a parasitic plant, which means it can’t make its own food like most plants do. Instead, it latches onto other plants – called host plants – and basically becomes their unwelcome houseguest, stealing nutrients and water. Think of it as the plant world’s equivalent of that relative who crashes on your couch indefinitely.

As a forb herb, fringed dodder lacks significant woody tissue and stays relatively soft throughout its growth. What makes it instantly recognizable are its thin, orange to yellow thread-like stems that twist and wind around host plants like organic spaghetti.

Where You’ll Find Fringed Dodder

This South American native (originally from Chile and Argentina) has made itself at home in several U.S. states, including Alabama, California, Maryland, New Mexico, Ohio, South Dakota, and Texas. As a non-native species, it reproduces on its own in the wild and tends to stick around once it’s established.

Should You Plant Fringed Dodder?

Here’s the short answer: probably not. While fringed dodder isn’t officially listed as invasive everywhere, its parasitic nature makes it a risky addition to any garden. Here’s why most gardeners steer clear:

  • It can weaken or kill the plants it attaches to
  • Once established, it’s difficult to remove completely
  • It can spread to neighboring gardens and natural areas
  • It offers minimal benefits to wildlife or pollinators

If You Encounter Fringed Dodder

If you spot fringed dodder in your garden, early removal is your best bet. Look for those telltale orange, thread-like stems wrapping around your plants, often accompanied by small, white flowers. Remove it carefully, making sure to get all the connections to host plants, as even small pieces can regrow.

Better Native Alternatives

Instead of fringed dodder, consider these native vining plants that offer similar visual interest without the parasitic problems:

  • Native morning glories for colorful flowers and climbing habit
  • Wild grape for wildlife food and attractive foliage
  • Native honeysuckles for fragrant flowers and bird appeal
  • Virgin’s bower for delicate white flowers and interesting seed heads

The Bottom Line

While fringed dodder is certainly an interesting plant from a botanical perspective, it’s not the best choice for most home gardens. Its parasitic nature can cause more harm than good, and there are plenty of native alternatives that offer similar visual appeal without the risk to your other plants. Sometimes the most fascinating plants are best appreciated from a distance – or better yet, in their native habitat where they belong.

Fringed Dodder

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

Solanales

Family

Cuscutaceae Dumort. - Dodder family

Genus

Cuscuta L. - dodder

Species

Cuscuta suaveolens Ser. - fringed dodder

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