North America Native Plant

Sticky Indian Paintbrush

Botanical name: Castilleja viscidula

USDA symbol: CAVI9

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Castilleja magnistylis Edwin (CAMA42)   

Sticky Indian Paintbrush: A Vibrant Native Wildflower for Western Gardens If you’re looking to add a splash of fiery color to your native plant garden, sticky Indian paintbrush (Castilleja viscidula) might just be the showstopper you’ve been searching for. This striking perennial wildflower brings the brilliant reds and oranges of ...

Sticky Indian Paintbrush: A Vibrant Native Wildflower for Western Gardens

If you’re looking to add a splash of fiery color to your native plant garden, sticky Indian paintbrush (Castilleja viscidula) might just be the showstopper you’ve been searching for. This striking perennial wildflower brings the brilliant reds and oranges of western landscapes right to your backyard, though it comes with its own unique set of growing challenges that make it both fascinating and sometimes frustrating for gardeners.

What Makes Sticky Indian Paintbrush Special

Sticky Indian paintbrush is a true native gem, belonging exclusively to the northwestern United States. This perennial forb – that’s garden-speak for a non-woody flowering plant – creates stunning displays of tubular, paintbrush-like flowers that look like they’ve been dipped in bright red paint. The sticky part of its name comes from the somewhat tacky feel of its stems and leaves, which helps distinguish it from its many Castilleja cousins.

Where It Calls Home

This beautiful wildflower is native to Idaho, Nevada, and Oregon, where it thrives in the diverse landscapes of the northwestern states. You’ll find it growing naturally in sagebrush communities, open woodlands, and mountain meadows throughout this region.

Why Gardeners Love (and Sometimes Struggle With) This Plant

Sticky Indian paintbrush offers several compelling reasons to include it in your garden:

  • Brilliant red-orange flowers that bloom from late spring through summer
  • Native status means it supports local ecosystems and wildlife
  • Attracts hummingbirds and native pollinators with its tubular flowers
  • Drought-tolerant once established
  • Perfect for wildflower meadows and native plant gardens

However, this plant comes with a significant caveat that makes it challenging for many gardeners: like most Indian paintbrushes, it’s semi-parasitic. This means it attaches its roots to nearby plants to borrow nutrients, making it notoriously difficult to grow in traditional garden settings.

The Right Spot for Success

Sticky Indian paintbrush thrives in USDA hardiness zones 4-8, making it suitable for most of the northern and mountainous regions where it naturally occurs. This plant performs best in:

  • Full sun to partial shade locations
  • Well-draining soils (it despises soggy conditions)
  • Native plant gardens or naturalized areas
  • Wildflower meadows with diverse plant communities
  • Xerophytic (dry-adapted) garden designs

Growing Tips and Realistic Expectations

Here’s where we need to have a heart-to-heart: sticky Indian paintbrush isn’t your typical garden-center plant. Its semi-parasitic nature means it needs host plants nearby – typically grasses or other forbs – to truly thrive. This makes it much more suitable for naturalistic plantings than formal gardens.

If you’re determined to try growing it, here are your best strategies:

  • Start from seed rather than transplants (which rarely survive)
  • Sow seeds in fall for natural cold stratification
  • Plant in areas with established native grasses and wildflowers
  • Avoid fertilizing – this plant prefers lean soils
  • Be patient – establishment can take 2-3 years
  • Don’t expect to move it once established

Supporting Wildlife in Your Garden

One of the biggest rewards of successfully growing sticky Indian paintbrush is watching the wildlife it attracts. Those bright tubular flowers are perfectly designed for hummingbirds, and you’ll likely see these tiny jeweled visitors regularly throughout the blooming season. Native bees and other pollinators also appreciate the nectar-rich flowers.

Is It Right for Your Garden?

Sticky Indian paintbrush is definitely not a beginner plant, and it’s not suited for every garden style. Consider this wildflower if you:

  • Have experience with native plants
  • Want to create a naturalistic wildflower meadow
  • Live within its native range
  • Don’t mind plants that can’t be easily moved or controlled
  • Value supporting native ecosystems over guaranteed garden success

If you’re new to native gardening or want more reliable options, consider starting with easier native wildflowers in your region before tackling the challenges of Indian paintbrushes.

The Bottom Line

Sticky Indian paintbrush represents both the beauty and the complexity of native plant gardening. When it works, it’s absolutely spectacular – a living piece of western wilderness in your garden. When it doesn’t work, it’s a humbling reminder that some plants prefer to remain wild. If you’re up for the challenge and have the right conditions, this stunning native can be a rewarding addition to naturalistic plantings, bringing the vibrant spirit of the American West right to your backyard.

Sticky Indian Paintbrush

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

Scrophulariaceae Juss. - Figwort family

Genus

Castilleja Mutis ex L. f. - Indian paintbrush

Species

Castilleja viscidula A. Gray - sticky Indian paintbrush

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