North America Native Plant

Arizona Water-willow

Botanical name: Justicia candicans

USDA symbol: JUCA9

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Adhatoda candicans Nees (ADCA4)  âš˜  Jacobinia candicans (Nees) Benth. & Hook. f. (JACA6)  âš˜  Jacobinia ovata A. Gray (JAOV)   

Arizona Water-Willow: A Desert Gem for Your Native Garden Meet the Arizona water-willow (Justicia candicans), a charming native shrub that’s about to become your new favorite addition to any drought-tolerant landscape. Don’t let the name fool you – this isn’t actually a willow at all! This delightful desert dweller belongs ...

Arizona Water-Willow: A Desert Gem for Your Native Garden

Meet the Arizona water-willow (Justicia candicans), a charming native shrub that’s about to become your new favorite addition to any drought-tolerant landscape. Don’t let the name fool you – this isn’t actually a willow at all! This delightful desert dweller belongs to the acanthus family and brings a unique combination of beauty, resilience, and wildlife appeal that makes it a standout choice for gardeners looking to embrace native plants.

What Makes Arizona Water-Willow Special?

This perennial shrub is a true Arizona native, naturally occurring throughout the state and perfectly adapted to the challenging desert environment. As a multi-stemmed woody plant, it typically grows to a manageable size of 3-5 feet tall and wide, making it an excellent choice for both small gardens and larger landscape designs.

The plant produces lovely tubular flowers that are irresistible to hummingbirds, butterflies, and native bees. These blooms create a spectacular show while supporting local pollinator populations – a win-win for both your garden’s beauty and the local ecosystem!

Where Does It Grow?

Arizona water-willow is native to Arizona, where it has evolved to thrive in the state’s unique desert conditions. This means it’s perfectly suited to handle the intense heat, brilliant sunshine, and minimal rainfall that characterize much of the southwestern United States.

Perfect Garden Roles

This versatile shrub excels in several landscape situations:

  • Xeriscaping and drought-tolerant gardens
  • Wildlife and pollinator gardens
  • Native plant landscapes
  • Desert-themed garden designs
  • Low-maintenance landscape borders
  • Foundation plantings that need minimal care

Growing Conditions and Care

One of the best things about Arizona water-willow is how easy it is to grow – as long as you give it what it naturally craves!

Light: Thrives in full sun to partial shade, though it performs best with plenty of morning sunlight.

Soil: Absolutely must have well-draining soil. This plant cannot tolerate soggy conditions, so ensure good drainage to prevent root rot.

Water: Once established, this drought champion requires minimal supplemental watering. Deep, infrequent watering during extreme dry spells is usually sufficient.

Climate: Hardy in USDA zones 8-10, making it perfect for the Southwest and other warm, arid regions.

Planting and Care Tips

Getting your Arizona water-willow off to a great start is straightforward:

  • Plant in fall or early spring when temperatures are moderate
  • Dig a hole twice as wide as the root ball but no deeper
  • Backfill with native soil – no need for amendments in most cases
  • Water regularly for the first few months to help establish roots
  • After establishment, reduce watering significantly
  • Prune lightly after flowering to maintain shape if desired
  • Apply a light layer of gravel mulch to help retain soil moisture

Wildlife Benefits

Arizona water-willow is a pollinator magnet! Its tubular flowers are specially designed to attract:

  • Hummingbirds, who love the flower shape and nectar
  • Native butterflies and moths
  • Beneficial native bees and other pollinators

By planting this native beauty, you’re creating valuable habitat and food sources for local wildlife while reducing the need for water-intensive, non-native alternatives.

Why Choose Arizona Water-Willow?

If you’re looking for a low-maintenance, drought-tolerant shrub that supports local wildlife and adds natural beauty to your landscape, Arizona water-willow checks all the boxes. It’s particularly perfect for gardeners who want to reduce their water usage while still enjoying a lush, attractive garden that works in harmony with the local environment.

This native gem proves that sustainable gardening doesn’t mean sacrificing beauty – it means choosing plants that are naturally suited to thrive in your specific location. Your local hummingbirds (and your water bill) will thank you!

Arizona Water-willow

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Scrophulariales

Family

Acanthaceae Juss. - Acanthus family

Genus

Justicia L. - water-willow

Species

Justicia candicans (Nees) L.D. Benson - Arizona water-willow

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