Native Plants

Devil’s Horsewhip

Achyranthes aspera

USDA symbol: ACAS

annual subshrub

Hawaii: non-native, naturalized
Lower 48 states: non-native, naturalized
Navassa Island: non-native, naturalized
Pacific Basin excluding Hawaii: native in some areas, naturalized in others
Puerto Rico: non-native, naturalized
U.S. Virgin Islands: non-native, naturalized

If you’ve encountered devil’s horsewhip (Achyranthes aspera) in your garden, you’re probably wondering whether this tall, somewhat scraggly plant deserves a spot in your landscape. The short answer? Probably not. But let’s dive into what makes this tropical wanderer tick and why you might want to think twice before welcoming ...

Devil’s Horsewhip: What Every Gardener Should Know About This Tropical Weed

If you’ve encountered devil’s horsewhip (Achyranthes aspera) in your garden, you’re probably wondering whether this tall, somewhat scraggly plant deserves a spot in your landscape. The short answer? Probably not. But let’s dive into what makes this tropical wanderer tick and why you might want to think twice before welcoming it into your garden family.

What Is Devil’s Horsewhip?

Devil’s horsewhip is a non-native herb that originally hails from tropical regions of Asia, Africa, and Australia. This hardy character has made itself at home across several U.S. states and territories, proving that some plants are just really, really good at making themselves comfortable wherever they land.

Technically speaking, it’s what botanists call a forb – essentially a non-woody plant that can be either annual or perennial depending on growing conditions. Think of it as nature’s version of that friend who can’t decide whether they’re staying for dinner or moving in permanently.

Where You’ll Find It

This globe-trotting plant has established populations across the southern United States and various territories, including Alabama, Florida, Hawaii, Louisiana, Maryland, Texas, Puerto Rico, the Virgin Islands, and even remote Navassa Island. It’s quite the traveler!

  • Species observed
  • No observations

The Not-So-Pretty Truth About Aesthetics

Let’s be honest – devil’s horsewhip isn’t going to win any beauty contests. This plant produces tall, somewhat ungainly stems topped with dense spikes of tiny, greenish flowers that are about as exciting as watching paint dry. While some gardeners might appreciate its rustic, wild appearance, most will find it more weedy than wonderful.

The plant can grow quite tall and tends to have a rather unkempt appearance that doesn’t play well with most landscape designs. If you’re going for that perfectly manicured garden look, this definitely isn’t your plant.

Growing Conditions and Hardiness

Here’s where devil’s horsewhip shows its true colors as a survivor. This plant is remarkably adaptable and can handle:

  • Poor, disturbed soils
  • Drought conditions
  • Hot, humid climates
  • USDA hardiness zones 9-11

According to wetland status data, it strongly prefers upland areas and almost never occurs in wetlands across most of its range, though it’s a bit more flexible in Hawaii.

Why You Probably Don’t Want This Plant

While devil’s horsewhip isn’t officially listed as invasive in the provided data, its ability to reproduce spontaneously and persist without human help suggests it’s quite the self-starter. Here’s why most gardeners choose to pass on this plant:

  • Limited ornamental value
  • Tendency to self-seed and spread
  • Weedy appearance
  • Better native alternatives available

Wildlife and Pollinator Benefits

Unfortunately, devil’s horsewhip doesn’t offer much in the way of wildlife benefits. Its small, inconspicuous flowers provide minimal attraction for pollinators, and it doesn’t serve as a significant food source for native wildlife. In the grand scheme of creating a wildlife-friendly garden, you’d be better served by other options.

Better Native Alternatives

Instead of devil’s horsewhip, consider these native alternatives that offer similar growing conditions tolerance but with much more garden appeal:

  • Native wildflowers suited to your region
  • Indigenous grasses that provide wildlife habitat
  • Local shrubs that support pollinators and birds

Check with your local native plant society or extension office for the best native options in your specific area.

The Bottom Line

While devil’s horsewhip is a fascinating example of plant adaptability and global travel, it’s not the best choice for intentional garden cultivation. Its weedy nature, limited aesthetic appeal, and minimal wildlife benefits make it more of a botanical curiosity than a landscape star.

If you’re dealing with existing plants on your property, they’re relatively easy to manage through regular weeding. And if you’re looking to fill that spot in your garden with something drought-tolerant and low-maintenance, there are plenty of native alternatives that will give you better results and support your local ecosystem.

Sometimes the best gardening advice is knowing when to say thanks, but no thanks – and devil’s horsewhip is definitely one of those times!

Achyranthes aspera is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Achyranthes aspera is also known as:

Achyranthes canescens | USDA symbol: ACCA37

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" — matching plants to their ideal growing conditions, so they'll thrive with less care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Atlantic and Gulf Coastal Plain (AL, AR, DC, DE, FL, GA, IL, KY, LA, MD, MS, MO, NC, NJ, OK, PA, SC, TN, TX, VA)

Obligate Upland

Caribbean (PR, VI)

Obligate Upland

Eastern Mountains and Piedmont (AL, AR, DC, DE, GA, IL, IN, KS, KY, MD, MO, NC, NJ, NY, OH, OK, PA, SC, TN, VA, WV)

Obligate Upland

Great Plains (CO, KS, MN, MT, NE, NM, ND, OK, SD, TX, WY)

Obligate Upland

Hawaii ()

Facultative
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Caryophyllidae
Order: Caryophyllales
Family: Amaranthaceae Martinov - Amaranth family
Genus: Achyranthes L. - chaff flower

Species: Achyranthes aspera L. - devil's horsewhip

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