North America Native Plant

Lake Almanor Clarkia

Botanical name: Clarkia stellata

USDA symbol: CLST3

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Lake Almanor Clarkia: A Rare Gem for California Native Gardens If you’re passionate about California native plants and love supporting conservation efforts, the Lake Almanor clarkia might just be the perfect addition to your garden. This delicate annual wildflower, scientifically known as Clarkia stellata, is a true California treasure with ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Lake Almanor Clarkia: A Rare Gem for California Native Gardens

If you’re passionate about California native plants and love supporting conservation efforts, the Lake Almanor clarkia might just be the perfect addition to your garden. This delicate annual wildflower, scientifically known as Clarkia stellata, is a true California treasure with a story worth telling.

What Makes Lake Almanor Clarkia Special?

Lake Almanor clarkia is an annual forb that produces charming star-shaped flowers in shades of pink to purple. True to its common name, this plant is closely tied to the Lake Almanor region of northeastern California, where it grows naturally in the Sierra Nevada foothills. As a member of the evening primrose family, it shares the characteristic four-petaled flowers that make Clarkia species so recognizable.

Where Does It Come From?

This beautiful wildflower is native to California and grows exclusively in the lower 48 states. Its natural range is quite limited, focusing primarily around the Lake Almanor area in the Sierra Nevada region. This restricted distribution makes it a true California endemic – a plant that exists nowhere else in the world naturally.

Why You Should (Carefully) Consider Growing It

Important Conservation Note: Lake Almanor clarkia has a Global Conservation Status of S3, meaning it’s considered vulnerable. With typically only 21 to 100 occurrences and between 3,000 to 10,000 individuals in the wild, this plant needs our help. If you choose to grow it, please ensure you source seeds or plants from reputable native plant nurseries that practice ethical collection methods.

Despite its rarity status, there are compelling reasons to include this plant in your garden:

  • Support conservation efforts by growing rare native species
  • Attract native pollinators like small bees to your garden
  • Add unique beauty with its distinctive star-shaped flowers
  • Connect with California’s natural heritage
  • Perfect for wildflower meadows and naturalized areas

Growing Conditions and Care

As an annual, Lake Almanor clarkia completes its entire life cycle in one growing season. Here’s what it needs to thrive:

Sun Requirements: Full sun to partial shade
Soil: Well-draining soils; avoid heavy clay or constantly wet conditions
Water: Moderate moisture during spring growing season, drought-tolerant once established
USDA Zones: 7-9 (suitable for most of California)

Planting and Care Tips

Growing Lake Almanor clarkia successfully requires understanding its natural growth cycle:

  • Best Planting Time: Direct seed in fall for spring germination
  • Soil Preparation: Ensure good drainage; amend heavy soils with sand or gravel if needed
  • Watering: Provide regular water during spring growth, then allow natural summer dormancy
  • Maintenance: Minimal care required; allow plants to self-seed for future years
  • Companion Plants: Pair with other California native annuals and perennial grasses

Garden Design Ideas

Lake Almanor clarkia works beautifully in:

  • Native California wildflower gardens
  • Naturalized meadow areas
  • Specialized rare plant collections
  • Spring ephemeral displays
  • Pollinator-focused garden sections

Supporting Conservation

By choosing to grow Lake Almanor clarkia responsibly, you’re participating in conservation efforts for this vulnerable species. Always purchase from reputable sources, never collect from wild populations, and consider donating to organizations that protect California’s native plant habitats.

This charming little wildflower may be small, but it carries the big responsibility of representing California’s unique botanical heritage. When grown thoughtfully and sourced ethically, Lake Almanor clarkia can bring both beauty and conservation value to your native garden.

Lake Almanor Clarkia

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

Myrtales

Family

Onagraceae Juss. - Evening Primrose family

Genus

Clarkia Pursh - clarkia

Species

Clarkia stellata Mosquin - Lake Almanor clarkia

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