North America Native Plant

Slender Spiderflower

Botanical name: Cleome multicaulis

USDA symbol: CLMU

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Cleome sonorae Sessé & Moc. ex A. Gray (CLSO2)  âš˜  Peritoma multicaulis (Moc. & Sessé ex DC.) Iltis (PEMU13)   

Slender Spiderflower: A Delicate Native Annual for Water-Wise Gardens If you’re looking for a charming native wildflower that won’t demand much from your garden but gives back plenty in return, meet the slender spiderflower (Cleome multicaulis). This delicate annual might not be the showiest flower in your garden, but it’s ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Slender Spiderflower: A Delicate Native Annual for Water-Wise Gardens

If you’re looking for a charming native wildflower that won’t demand much from your garden but gives back plenty in return, meet the slender spiderflower (Cleome multicaulis). This delicate annual might not be the showiest flower in your garden, but it’s got a quiet elegance that makes it a perfect addition to naturalistic landscapes and water-wise gardens.

What Is Slender Spiderflower?

Slender spiderflower is a native annual forb that belongs to the cleome family. Unlike its more flamboyant garden cousins, this little wildflower keeps things subtle with small clusters of white to pale pink flowers that dance on slender stems. As an herbaceous plant, it lacks woody tissue and completes its entire life cycle in one growing season, making it a true annual.

You might also see this plant listed under its synonyms Cleome sonorae or Peritoma multicaulis in some references, but they’re all the same delightful little flower.

Where Does It Call Home?

This native beauty calls the American Southwest home, naturally occurring across Arizona, Colorado, New Mexico, Texas, and Wyoming. It’s perfectly adapted to the semi-arid and desert regions of these states, thriving in conditions that would leave many garden plants wilting.

Important Conservation Note

Before you get too excited about adding slender spiderflower to your garden, there’s something important to know: this plant has a Global Conservation Status of S2S3, which indicates it may be somewhat rare or uncommon in parts of its range. This doesn’t mean you shouldn’t grow it – quite the opposite! – but it does mean you should source your seeds or plants responsibly from reputable native plant suppliers who collect sustainably or grow from cultivated stock.

Why Grow Slender Spiderflower?

There are several compelling reasons to give this modest native a spot in your garden:

  • True Native: As a plant native to the lower 48 states, it supports local ecosystems and provides authentic habitat
  • Water-Wise: Once established, it’s incredibly drought tolerant – perfect for xeriscaping
  • Pollinator Friendly: Those small flowers are magnets for native bees, butterflies, and other beneficial insects
  • Low Maintenance: As an annual that self-seeds, it can naturalize without becoming aggressive
  • Wetland Flexible: With a Facultative Wetland status, it’s adaptable to various moisture conditions

Perfect Garden Settings

Slender spiderflower shines in several garden styles:

  • Native Plant Gardens: A natural choice for authentic regional landscapes
  • Wildflower Meadows: Adds delicate texture among bolder wildflowers
  • Xeriscape Gardens: Thrives with minimal water once established
  • Prairie Restorations: Helps recreate authentic grassland communities
  • Rain Gardens: Its facultative wetland status makes it suitable for areas with variable moisture

Growing Conditions and Care

One of the best things about slender spiderflower is how easy-going it is about growing conditions:

  • Sunlight: Prefers full sun but can tolerate some light shade
  • Soil: Thrives in well-draining soils; doesn’t mind poor or sandy conditions
  • Water: Drought tolerant once established; actually prefers drier conditions
  • USDA Zones: Hardy in zones 4-9, covering most of its native range

Planting and Care Tips

Growing slender spiderflower is refreshingly straightforward:

  • Seeding: Direct sow seeds in fall or early spring when temperatures are cool
  • Germination: Seeds may need cold stratification, so fall planting often works best
  • Spacing: Allow seeds to scatter naturally or plant about 6-12 inches apart
  • Watering: Water gently until established, then let nature take over
  • Maintenance: Minimal care needed; let plants go to seed for next year’s display

Wildlife and Pollinator Benefits

While slender spiderflower might look delicate, it’s a hardworking member of the garden ecosystem. Its small flowers provide nectar for various pollinators, including native bees and butterflies. The plant’s seeds likely provide food for small birds and other wildlife, though specific wildlife relationships are still being studied.

The Bottom Line

Slender spiderflower proves that you don’t need flashy blooms to make a garden impact. This charming native annual offers authentic regional character, supports local wildlife, and thrives with minimal care – all while helping conserve a potentially uncommon species. Just remember to source your plants or seeds responsibly, and you’ll have a delightful addition to your water-wise, wildlife-friendly garden that truly belongs in the landscape.

Sometimes the best garden plants are the ones that whisper rather than shout, and slender spiderflower does exactly that with quiet, native grace.

Slender Spiderflower

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 multicaulis DC. - slender spiderflower

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