North America Native Plant

Rock Violet

Botanical name: Viola lithion

USDA symbol: VILI7

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Rock Violet: A Rare Gem for Western Native Plant Gardens If you’re passionate about native plants and live in the western United States, you might want to learn about rock violet (Viola lithion) – though finding it might prove to be quite the treasure hunt! This charming little perennial is ...

Rare plant alert!

Region: Conservation status by state

Status: S1S2: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Rock Violet: A Rare Gem for Western Native Plant Gardens

If you’re passionate about native plants and live in the western United States, you might want to learn about rock violet (Viola lithion) – though finding it might prove to be quite the treasure hunt! This charming little perennial is one of nature’s more exclusive offerings, found only in Nevada and Utah.

What Makes Rock Violet Special?

Rock violet is a native forb – essentially a non-woody herbaceous plant that comes back year after year. Like other members of the violet family, it produces lovely small flowers that add delicate beauty to any garden setting. What sets this particular species apart is its incredible rarity and its specialized adaptation to the unique growing conditions of the Great Basin region.

Where Does Rock Violet Call Home?

This exclusive little plant is native to just two states: Nevada and Utah. It’s what botanists call an endemic species, meaning it evolved in this specific region and doesn’t naturally occur anywhere else in the world. Talk about local pride!

A Word of Caution: Rarity Matters

Before you start planning where to plant rock violet in your garden, there’s something important you need to know. This species has a Global Conservation Status of S1S2, which indicates it’s quite rare in the wild. This means if you’re determined to grow rock violet, you absolutely must source it responsibly.

Here’s what responsible sourcing means:

  • Purchase only from reputable native plant nurseries that propagate their own stock
  • Never collect plants from the wild
  • Look for nurseries that participate in conservation programs
  • Consider supporting botanical gardens or conservation organizations working to preserve this species

Is Rock Violet Right for Your Garden?

Rock violet could be a wonderful addition to your landscape if you’re creating a native plant garden focused on western species. As a low-growing forb, it works beautifully in rock gardens, native plant borders, or as part of a drought-tolerant landscape design.

This perennial is particularly well-suited for gardeners who want to support local pollinators. Like other violets, rock violet likely attracts native bees, small butterflies, and other beneficial insects that have co-evolved with this plant over thousands of years.

Growing Conditions and Care

Since rock violet is adapted to the Nevada and Utah landscape, it prefers growing conditions that mimic its native habitat:

  • Soil: Well-draining, rocky or sandy soils that don’t hold moisture
  • Water: Drought-tolerant once established; minimal supplemental watering needed
  • Light: Full sun to partial shade
  • Climate: Best suited for USDA hardiness zones 4-8

Planting and Care Tips

If you’re fortunate enough to find responsibly sourced rock violet plants, here are some tips for success:

  • Plant in spring or early fall when temperatures are moderate
  • Ensure excellent drainage – this is crucial for preventing root rot
  • Water gently until established, then rely mainly on natural precipitation
  • Avoid fertilizing, as native plants typically prefer lean soils
  • Allow the plant to self-seed if it’s happy in your garden

Supporting Conservation Through Gardening

By choosing to grow rare native plants like rock violet (when responsibly sourced), you’re participating in an important conservation effort. Native plant gardens serve as refugia for local wildlife and help preserve genetic diversity of our regional flora.

However, if you can’t find responsibly sourced rock violet, consider these alternatives that provide similar benefits:

  • Other native western violets that are more common
  • Native wildflowers suited to your specific region
  • Drought-tolerant native perennials that support local pollinators

The Bottom Line

Rock violet is a special plant for special gardens. While its rarity means it’s not for every gardener, those who can source it responsibly will be rewarded with a truly unique addition to their native plant collection. Just remember: with great plants comes great responsibility. Always prioritize conservation over cultivation when it comes to rare species like this remarkable little violet.

Rock Violet

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Violales

Family

Violaceae Batsch - Violet family

Genus

Viola L. - violet

Species

Viola lithion N.H. Holmgren & P.K. Holmgren - rock violet

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