North America Native Plant

Kidneywood

Botanical name: Eysenhardtia

USDA symbol: EYSEN

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Kidneywood: A Fragrant Native Shrub for Southwestern Gardens If you’re looking for a low-maintenance native shrub that brings both beauty and wildlife value to your southwestern garden, let me introduce you to kidneywood (Eysenhardtia). This delightfully fragrant perennial shrub might not be the most famous plant in the native gardening ...

Kidneywood: A Fragrant Native Shrub for Southwestern Gardens

If you’re looking for a low-maintenance native shrub that brings both beauty and wildlife value to your southwestern garden, let me introduce you to kidneywood (Eysenhardtia). This delightfully fragrant perennial shrub might not be the most famous plant in the native gardening world, but it’s definitely one worth getting to know!

What Makes Kidneywood Special?

Kidneywood is a true southwestern native, naturally growing across Arizona, New Mexico, and Texas. As a perennial shrub, this multi-stemmed woody plant typically reaches heights of 4 to 5 meters (13 to 16 feet), though it can sometimes grow taller or remain more compact depending on growing conditions.

What really sets kidneywood apart is its incredible fragrance. The small, white flowers cluster at the tips of branches, creating a sweet perfume that can fill your entire garden space. These blooms aren’t just pretty to look at and smell – they’re also magnets for pollinators like bees and butterflies.

Why Your Garden Needs Kidneywood

Here’s why kidneywood deserves a spot in your landscape:

  • Pollinator magnet: Those fragrant white flower clusters are irresistible to bees and butterflies
  • Low maintenance: Once established, this native shrub practically takes care of itself
  • Drought tolerant: Perfect for water-wise gardening and xeriscaping
  • Year-round interest: Attractive compound leaves and interesting bark provide visual appeal beyond bloom time
  • Native wildlife support: Being a native species means it supports local ecosystem relationships

Where to Use Kidneywood in Your Landscape

Kidneywood shines in several garden settings:

  • Xeriscape gardens: Its drought tolerance makes it perfect for water-conscious landscapes
  • Native plant gardens: A natural choice for authentic southwestern plantings
  • Wildlife gardens: Provides nectar for pollinators and habitat for native insects
  • Specimen planting: Can serve as an attractive focal point, especially when in bloom
  • Naturalized areas: Great for creating informal, wild-looking spaces

Growing Kidneywood Successfully

The good news is that kidneywood is refreshingly easy to grow if you’re in the right climate zone. This native thrives in USDA hardiness zones 7-10, making it perfect for much of the southwestern United States.

Growing Conditions

Give your kidneywood these conditions for best results:

  • Sunlight: Full sun is preferred for optimal flowering and growth
  • Soil: Well-draining soil is essential – this plant won’t tolerate soggy conditions
  • Water: Drought tolerant once established, but will need regular water during its first year
  • Space: Allow room for its natural spreading habit

Planting and Care Tips

Getting your kidneywood off to a good start is straightforward:

  • Planting time: Fall or early spring are ideal planting seasons
  • Initial care: Water regularly during the first year to help establish a strong root system
  • Ongoing maintenance: Once established, minimal care is needed
  • Pruning: Light pruning can help maintain shape, but isn’t strictly necessary
  • Fertilizing: Native plants typically don’t need fertilization in their natural range

Is Kidneywood Right for Your Garden?

Kidneywood is an excellent choice if you’re gardening in the southwestern United States and want to support native ecosystems while enjoying a beautiful, fragrant shrub. Its combination of low maintenance requirements, pollinator benefits, and drought tolerance make it particularly valuable for sustainable gardening practices.

However, if you’re outside its native range or hardiness zones, you might want to look for native alternatives that are better suited to your local conditions. The key to successful native gardening is choosing plants that naturally thrive in your specific region.

With its sweet fragrance, pollinator appeal, and easy-going nature, kidneywood proves that native plants can be both ecologically beneficial and garden-worthy. Give this southwestern gem a try – your local bees and butterflies will thank you!

Kidneywood

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

Eysenhardtia Kunth - kidneywood

Species

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