North America Non-native Plant

Cleome Hirta

Botanical name: Cleome hirta

USDA symbol: CLHI6

Native status: Not native but doesn't reproduce and persist in the wild

Cleome hirta: The Mystery Plant That’s Hard to Pin Down Ever stumbled across a plant name that seems to exist in botanical limbo? Meet Cleome hirta, a member of the cleome family that’s proving to be quite the enigma in the gardening world. While most of its cleome cousins are ...

Cleome hirta: The Mystery Plant That’s Hard to Pin Down

Ever stumbled across a plant name that seems to exist in botanical limbo? Meet Cleome hirta, a member of the cleome family that’s proving to be quite the enigma in the gardening world. While most of its cleome cousins are well-documented garden favorites, this particular species keeps a much lower profile.

What We Know (And What We Don’t)

Here’s the honest truth about Cleome hirta: there’s surprisingly little reliable information available about this plant. Unlike popular cleome species such as Cleome hassleriana (spider flower), C. hirta remains somewhat mysterious in terms of its specific characteristics, native range, and growing requirements.

What we can tell you is that it belongs to the Cleomaceae family, making it a relative of those showy, spider-like flowers you might recognize from cottage gardens. The name hirta typically refers to hairy characteristics in botanical terms, suggesting this species likely has some fuzzy or hairy features on its leaves or stems.

The Geographic Mystery

The exact native range of Cleome hirta is unclear from available sources, though it appears to be associated with warmer, tropical or subtropical regions. Without more specific distribution data, it’s difficult to determine where this plant naturally occurs.

Should You Grow It?

Here’s where things get tricky. With limited information about Cleome hirta’s growing requirements, potential invasiveness, or even availability in the nursery trade, it’s hard to make a solid recommendation either way. The lack of documentation could mean:

  • It’s extremely rare or localized in its native habitat
  • It’s not commonly cultivated
  • It may be confused with or synonymous with other cleome species
  • Documentation simply hasn’t caught up with this particular species

Better-Documented Alternatives

If you’re drawn to the cleome family but want something with proven garden performance, consider these well-documented options:

  • Cleome hassleriana – The classic spider flower with showy pink, white, or purple blooms
  • Cleome gynandra – A more delicate species with interesting seed pods
  • Native alternatives – Check with your local native plant society for cleome species or similar plants native to your specific region

The Takeaway

Sometimes in the plant world, mystery adds to the intrigue. Cleome hirta falls into that category of plants where more research is needed before we can confidently recommend it for home gardens. If you’re a plant detective who loves tracking down rare or unusual species, this might be an interesting research project. However, if you’re looking for reliable garden performers, you’ll probably want to stick with better-documented cleome species.

Have you encountered Cleome hirta in your botanical adventures? We’d love to hear about your experiences with this elusive member of the cleome family!

Cleome Hirta

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Capparales

Family

Capparaceae Juss. - Caper family

Genus

Cleome L. - spiderflower

Species

Cleome hirta (Klotzsch) Oliv.

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