North America Native Plant

Queen’s-root

Botanical name: Stillingia linearifolia

USDA symbol: STLI3

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Queen’s-Root: A Native Southwestern Treasure for Desert Gardens If you’re looking to add authentic southwestern charm to your landscape while supporting local ecosystems, queen’s-root (Stillingia linearifolia) might just be the hidden gem you’ve been searching for. This unassuming native perennial herb brings quiet elegance to desert gardens and drought-tolerant landscapes ...

Queen’s-Root: A Native Southwestern Treasure for Desert Gardens

If you’re looking to add authentic southwestern charm to your landscape while supporting local ecosystems, queen’s-root (Stillingia linearifolia) might just be the hidden gem you’ve been searching for. This unassuming native perennial herb brings quiet elegance to desert gardens and drought-tolerant landscapes across the American Southwest.

What is Queen’s-Root?

Queen’s-root is a native perennial forb that belongs to the diverse world of herbaceous plants. Unlike woody shrubs or trees, this plant maintains soft, non-woody tissue above ground while developing a perennial root system that helps it survive harsh desert conditions year after year. Its linear leaves give it a distinctive, almost grass-like appearance that adds textural interest to native plantings.

Where Does Queen’s-Root Call Home?

This southwestern native has made itself at home across four states in the lower 48: Arizona, California, Nevada, and New Mexico. It’s perfectly adapted to the unique climate challenges of these regions, making it an excellent choice for gardeners who want to work with nature rather than against it.

Why Consider Queen’s-Root for Your Garden?

There are several compelling reasons to give this native plant a spot in your landscape:

  • Authentic regional character: Nothing says southwestern garden quite like plants that actually belong there
  • Water-wise gardening: Once established, it thrives with minimal irrigation
  • Low maintenance: Native plants typically require less fussing than exotic species
  • Ecosystem support: Provides habitat and resources for local wildlife and pollinators

Garden Design and Landscape Role

Queen’s-root works beautifully as a ground cover or accent plant in xerophytic (drought-adapted) gardens. Its herbaceous nature and linear foliage make it an excellent companion for other desert natives, cacti, and succulents. Consider using it in:

  • Native plant gardens
  • Desert-themed landscapes
  • Water-wise garden borders
  • Natural habitat restoration projects

Growing Conditions and Care

Like most southwestern natives, queen’s-root appreciates conditions that mimic its natural habitat. While specific cultivation information is limited due to its relative rarity in the nursery trade, here’s what works best:

  • Sunlight: Full sun exposure
  • Soil: Well-draining soil is essential; avoid heavy clay or constantly moist conditions
  • Water: Drought-tolerant once established; minimal supplemental irrigation needed
  • Climate: Best suited for USDA zones 8-10, matching its native southwestern range

The Challenge: Finding Queen’s-Root

Here’s where things get a bit tricky. Queen’s-root isn’t commonly available in mainstream nurseries, which can make sourcing this native plant challenging. If you’re determined to add it to your garden, try contacting:

  • Native plant societies in your area
  • Specialized native plant nurseries
  • Desert botanical garden plant sales
  • Online retailers focusing on southwestern natives

Is Queen’s-Root Right for Your Garden?

Queen’s-root is an excellent choice if you’re gardening in its native southwestern range and want to create an authentic, low-water landscape. However, it might not be the best fit if you’re looking for showy flowers or dramatic foliage. This plant’s beauty lies in its subtle charm and ecological value rather than flashy aesthetics.

For gardeners outside the Southwest, consider focusing on plants native to your specific region instead. Every area has its own fascinating native species that will perform better and provide more ecological benefits than plants from distant climates.

The Bottom Line

Queen’s-root represents the quiet resilience and understated beauty of southwestern native plants. While it may not be the star of your garden show, it offers something perhaps more valuable: a genuine connection to the natural heritage of the American Southwest. For the right garden in the right place, this native herb can be a wonderful addition to a thoughtful, regionally appropriate landscape.

Queen’s-root

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

Euphorbiales

Family

Euphorbiaceae Juss. - Spurge family

Genus

Stillingia Garden ex L. - toothleaf

Species

Stillingia linearifolia S. Watson - queen's-root

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