North America Native Plant

Twolobe Clarkia

Botanical name: Clarkia biloba biloba

USDA symbol: CLBIB2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Godetia biloba (Durand) S. Watson (GOBI4)   

Twolobe Clarkia: A Charming California Native for Your Wildflower Garden If you’re looking to add some authentic California charm to your garden, let me introduce you to the delightful twolobe clarkia (Clarkia biloba biloba). This petite annual wildflower might not be the showiest plant in your garden center, but it ...

Twolobe Clarkia: A Charming California Native for Your Wildflower Garden

If you’re looking to add some authentic California charm to your garden, let me introduce you to the delightful twolobe clarkia (Clarkia biloba biloba). This petite annual wildflower might not be the showiest plant in your garden center, but it packs a punch when it comes to supporting local ecosystems and creating that coveted natural meadow look that so many gardeners crave.

What Makes Twolobe Clarkia Special?

The twolobe clarkia is a true California native, found naturally throughout the Golden State’s diverse landscapes. As its name suggests, this charming little forb produces delicate flowers with distinctively two-lobed petals, typically displaying lovely shades of pink to purple that seem to glow in the afternoon sun.

You might occasionally see this plant listed under its synonym, Godetia biloba, but don’t let the name confusion fool you – we’re talking about the same wonderful wildflower that has been gracing California’s hillsides and meadows for countless generations.

Where Does Twolobe Clarkia Grow?

This native beauty calls California home, where it thrives in the Sierra Nevada foothills and Central Valley regions. From coastal areas to inland valleys, twolobe clarkia has adapted to California’s unique Mediterranean climate and diverse soil conditions.

Why Gardeners Love (and Should Love) Twolobe Clarkia

There are several compelling reasons to consider adding twolobe clarkia to your garden palette:

  • Low maintenance: As an annual forb, it completes its life cycle in one season and often self-seeds for next year’s display
  • Pollinator magnet: The accessible flowers attract native bees, butterflies, and other beneficial insects
  • Drought tolerant: Once established, it requires minimal supplemental watering
  • Natural aesthetic: Perfect for creating authentic California wildflower meadows
  • Supports biodiversity: Provides food and habitat for native wildlife

Garden Design and Landscape Uses

Twolobe clarkia shines brightest in naturalized settings and wildflower gardens. It’s an excellent choice for:

  • Native plant gardens and California-themed landscapes
  • Wildflower meadows and prairie-style plantings
  • Xerophytic gardens designed for water conservation
  • Pollinator gardens focused on supporting local ecosystems
  • Naturalized areas where you want a wild appearance

While we don’t have specific height and width measurements for this particular species, most clarkias tend to be modest in size, making them perfect for weaving throughout larger plantings or massing in drifts for maximum visual impact.

Growing Conditions and Care

One of the best things about twolobe clarkia is its easygoing nature. Here’s what this California native prefers:

  • Sunlight: Full sun exposure for best flowering
  • Soil: Well-draining soils; tolerates poor or rocky conditions
  • Water: Minimal once established; actually prefers drier conditions
  • Climate: Thrives in USDA zones 8-10, perfectly suited to California’s Mediterranean climate

Planting and Care Tips

Growing twolobe clarkia successfully is refreshingly straightforward:

  • Timing: Direct sow seeds in fall or early spring when temperatures are cool
  • Seeding: Scatter seeds directly in the garden – they prefer not to be transplanted
  • Watering: Provide minimal water during germination, then reduce as plants establish
  • Maintenance: Allow plants to go to seed if you want them to return next year
  • Fertilizing: Usually unnecessary – these natives are adapted to California’s naturally lean soils

A Perfect Choice for California Gardens

If you’re passionate about supporting native ecosystems while creating a beautiful, low-maintenance garden, twolobe clarkia deserves a spot in your planting plans. This authentic California native offers the perfect combination of natural beauty, ecological benefits, and easy care that makes gardening both rewarding and sustainable.

Whether you’re creating a dedicated native plant garden or simply want to add some local character to your landscape, twolobe clarkia will reward you with its delicate charm and its important role in supporting California’s native pollinators and wildlife. Sometimes the most beautiful gardens are the ones that work in harmony with nature – and twolobe clarkia is your perfect partner in that endeavor.

Twolobe 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 biloba (Durand) A. Nelson & J.F. Macbr. - twolobe clarkia

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