North America Native Plant

Catclaw Mimosa

Botanical name: Mimosa aculeaticarpa

USDA symbol: MIAC3

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Catclaw Mimosa: A Thorny Beauty for Southwestern Gardens If you’re looking for a tough-as-nails native shrub that can handle the heat while serving up gorgeous blooms, meet the catclaw mimosa (Mimosa aculeaticarpa). This spunky little shrub might sound intimidating with its catclaw moniker, but don’t let that scare you away ...

Catclaw Mimosa: A Thorny Beauty for Southwestern Gardens

If you’re looking for a tough-as-nails native shrub that can handle the heat while serving up gorgeous blooms, meet the catclaw mimosa (Mimosa aculeaticarpa). This spunky little shrub might sound intimidating with its catclaw moniker, but don’t let that scare you away – it’s actually a delightful addition to the right garden setting.

What Makes Catclaw Mimosa Special

Catclaw mimosa is a true native of the American Southwest, calling Arizona, New Mexico, and Texas home. As a perennial shrub, this hardy plant typically grows as a multi-stemmed woody specimen that usually stays under 13-16 feet tall, making it perfect for medium-sized garden spaces.

The real showstoppers are the flowers – delicate, fragrant puffballs in shades of pink to purple that look almost too pretty to be growing in the desert. These blooms appear alongside feathery, bipinnate leaves that give the whole plant a soft, almost fern-like appearance. Just watch out for those thorns that give it the catclaw name!

Why Your Garden (and Local Wildlife) Will Love It

This native beauty is like a magnet for pollinators. Bees and butterflies can’t resist those nectar-rich blooms, making catclaw mimosa an excellent choice for wildlife-friendly gardens. Plus, since it’s a native species, it naturally supports local ecosystems without the risk of becoming invasive.

From a design perspective, catclaw mimosa works beautifully as:

  • An accent shrub in desert or xeriscape gardens
  • A naturalized planting in larger landscapes
  • Part of a native plant collection
  • A wildlife habitat feature

Growing Conditions and Care

One of the best things about catclaw mimosa is how low-maintenance it becomes once established. This drought-tolerant champion thrives in USDA hardiness zones 8-10, making it perfect for hot, dry climates.

Ideal growing conditions include:

  • Full sun exposure
  • Well-draining soil (it really doesn’t like wet feet)
  • Minimal water once established
  • Space to spread naturally

Planting and Care Tips

Spring is your best bet for planting catclaw mimosa, giving it time to establish before facing its first winter. Here’s how to set it up for success:

  • Choose a sunny spot with good drainage
  • Water regularly the first year, then back off significantly
  • Add mulch around the base to retain moisture and suppress weeds
  • Prune carefully (remember those thorns!) to maintain shape if needed
  • Be patient – like many natives, it may take a season or two to really take off

Is Catclaw Mimosa Right for Your Garden?

This native shrub is ideal if you’re gardening in the Southwest and want a low-water, wildlife-friendly plant that offers seasonal interest. It’s perfect for naturalized areas where its spreading habit can shine, and it’s a great choice for gardeners who appreciate native plants that support local ecosystems.

However, you might want to think twice if you have small children or pets who frequent the garden area, as those thorns are no joke. Also, if you prefer a more formal, manicured look, this free-spirited shrub might not be your best match.

Overall, catclaw mimosa is a wonderful choice for the right setting – a tough, beautiful native that asks for little but gives back plenty in terms of wildlife value and seasonal beauty.

Catclaw Mimosa

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

Mimosa L. - sensitive plant

Species

Mimosa aculeaticarpa Ortega - catclaw mimosa

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