North America Native Plant

Cooley’s Bundleflower

Botanical name: Desmanthus cooleyi

USDA symbol: DECO2

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Cooley’s Bundleflower: A Delightful Native Wildflower for Low-Water Gardens If you’re looking for a charming native wildflower that won’t demand constant attention or drain your water bill, let me introduce you to Cooley’s bundleflower (Desmanthus cooleyi). This delightful little perennial might not be the showiest plant in your garden, but ...

Cooley’s Bundleflower: A Delightful Native Wildflower for Low-Water Gardens

If you’re looking for a charming native wildflower that won’t demand constant attention or drain your water bill, let me introduce you to Cooley’s bundleflower (Desmanthus cooleyi). This delightful little perennial might not be the showiest plant in your garden, but it’s got plenty of personality and some serious staying power.

What Makes Cooley’s Bundleflower Special?

Cooley’s bundleflower is a true native of the American Southwest, naturally occurring across Arizona, Colorado, Kansas, New Mexico, Oklahoma, and Texas. As a perennial forb, it’s the kind of plant that comes back year after year without the woody stems of shrubs or trees – just reliable, herbaceous growth that emerges from ground level each growing season.

What really catches the eye are those adorable little flower heads. Picture tiny white to pale pink pompoms, barely half an inch across, dotting the plant from spring through fall. The flowers sit atop delicate, feathery foliage that gives the whole plant an almost ethereal quality. It’s like having nature’s own confetti celebration in your garden!

Perfect for Water-Wise Landscapes

Here’s where Cooley’s bundleflower really shines – it’s a drought champion. Once established, this tough little native can handle extended dry periods like a pro, making it perfect for:

  • Xeriscapes and desert gardens
  • Prairie-style plantings
  • Native wildflower meadows
  • Slopes and areas prone to erosion
  • Low-maintenance naturalized areas

The plant works beautifully as a ground cover or mixed into wildflower gardens where its delicate texture provides a nice contrast to bolder, more structural plants.

A Pollinator Magnet

Don’t let the small flowers fool you – pollinators absolutely love Cooley’s bundleflower! Those tiny blooms are packed with nectar that attracts native bees, butterflies, and other beneficial insects throughout the growing season. It’s like setting up a neighborhood café for your local pollinator community.

Growing Cooley’s Bundleflower Successfully

The beauty of this native is its easygoing nature. Cooley’s bundleflower thrives in USDA hardiness zones 7-10, which covers most of its natural range and then some.

Ideal Growing Conditions

  • Sunlight: Full sun is best – at least 6 hours of direct sunlight daily
  • Soil: Well-drained soils are essential; it actually prefers poor to average soils over rich, fertile ground
  • Water: Drought tolerant once established; minimal watering needed after the first year
  • pH: Adaptable to various soil pH levels

Planting and Care Tips

Getting started with Cooley’s bundleflower is refreshingly simple:

  • Seeding: Direct seed in fall or early spring when temperatures are cool
  • Spacing: Allow adequate space for the plant to spread naturally
  • Watering: Water regularly during the first growing season to help establish roots, then cut back significantly
  • Maintenance: Cut back old growth in late winter before new growth emerges
  • Self-seeding: Don’t be surprised if it spreads naturally – it may self-seed in favorable conditions

Why Choose Cooley’s Bundleflower?

This native wildflower offers the perfect combination of beauty, resilience, and ecological value. It’s ideal for gardeners who want to support local wildlife while creating landscapes that work with nature rather than against it. Plus, once it’s established, you can practically forget about it – except to enjoy those cheerful little flowers dancing in the breeze.

Whether you’re creating a full-scale native plant garden or just looking to add some drought-tolerant charm to a sunny corner, Cooley’s bundleflower deserves a spot on your plant list. It’s proof that sometimes the most understated plants make the biggest impact!

Cooley’s Bundleflower

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Desmanthus Willd. - bundleflower

Species

Desmanthus cooleyi (Eaton) Trel. - Cooley's bundleflower

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