Guide5 min read

What Is Kudzu? Identifying "The Vine That Ate the South"

Identify kudzu by its three-part leaves, hairy vines, and purple grape-scented flowers — and learn why this fast-growing invasive vine smothers everything in its path.

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What Is Kudzu? Identifying "The Vine That Ate the South"Schurdl / Wikimedia Commons (CC BY-SA 4.0)

Kudzu (Pueraria montana) is a fast-growing invasive vine from Asia, introduced to the United States in the late 1800s and later planted widely for erosion control across the South. It earned the nickname "the vine that ate the South" by blanketing trees, fields, and abandoned buildings under a green tide. Here is how to recognize it.

How to Identify Kudzu

  • Leaves in groups of three broad leaflets, often with shallow lobes, on hairy stems
  • Long, hairy, ropey vines that climb and drape over anything in reach
  • Fragrant purple, grape-scented flower clusters in late summer
  • Explosive growth — up to about a foot a day in peak season, smothering trees and structures

Why It Matters

Kudzu grows over the top of native plants and whole trees, blocking their light until they die. Its deep, massive root crowns make it extremely hard to remove, and it can regrow from fragments. Once established, it takes persistent effort over several years to control.

What to Do

For small patches, repeated cutting and digging out the root crowns over multiple seasons can work; larger infestations usually need a managed, long-term control plan. Do not compost or move cut vines where they can re-root. Report new infestations to local invasive-species programs.

Not sure whether that aggressive three-leaflet vine is kudzu or a native look-alike? Snap a photo and Spotter will identify it and tell you whether it is invasive where you live.

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