North America Native Plant

Coast Range Cryptantha

Botanical name: Cryptantha corollata

USDA symbol: CRCO33

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Coast Range Cryptantha: A Delicate California Native Worth Discovering If you’re looking to add some understated charm to your California native garden, meet the coast range cryptantha (Cryptantha corollata). This modest annual wildflower might not win any flashy flower contests, but it brings a quiet elegance and authentic native character ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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 ⚘

Coast Range Cryptantha: A Delicate California Native Worth Discovering

If you’re looking to add some understated charm to your California native garden, meet the coast range cryptantha (Cryptantha corollata). This modest annual wildflower might not win any flashy flower contests, but it brings a quiet elegance and authentic native character that’s increasingly rare in our landscapes.

What Makes Coast Range Cryptantha Special?

Coast range cryptantha is a native annual forb that belongs to the borage family. As an annual, it completes its entire life cycle in one growing season, making it a perfect addition for gardeners who enjoy the seasonal rhythm of wildflowers. The plant produces small, delicate white flowers arranged in characteristic coiled clusters that unfurl as they bloom – a signature feature of the borage family that never fails to fascinate.

Where You’ll Find This California Native

True to its name, coast range cryptantha calls California home, where it naturally occurs throughout the state’s diverse landscapes. This native status means it’s perfectly adapted to California’s unique climate patterns and soil conditions, making it a smart choice for water-wise and ecologically conscious gardeners.

A Note About Rarity

Before you rush to plant coast range cryptantha, there’s something important to know: this species has a conservation status that suggests it may be somewhat uncommon in the wild. If you’re interested in growing this native beauty, make sure to source seeds or plants from reputable native plant nurseries that practice responsible collection methods. Never collect seeds from wild populations.

Why Grow Coast Range Cryptantha?

Here’s why this humble native deserves a spot in your garden:

  • True California native: Supports local ecosystems and requires less water than non-native alternatives
  • Pollinator magnet: Those small white flowers are perfect landing pads for native bees and other beneficial insects
  • Low maintenance: Once established, it thrives with minimal care
  • Self-seeding: Will naturally return year after year if conditions are right
  • Drought tolerant: Perfect for water-wise landscaping

Perfect Garden Companions

Coast range cryptantha shines in naturalistic settings where its modest charm can complement rather than compete. It’s ideal for:

  • Native plant gardens and natural landscapes
  • Wildflower meadows and prairie-style plantings
  • Rock gardens with good drainage
  • Areas where you want seasonal color without ongoing maintenance

Growing Conditions and Care

The good news? Coast range cryptantha isn’t fussy about its growing conditions. Here’s what it prefers:

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soil – it won’t tolerate soggy conditions
  • Water: Drought-tolerant once established; minimal summer water needed
  • Climate: Best suited for USDA zones 8-10

Planting and Care Tips

Growing coast range cryptantha successfully is refreshingly straightforward:

  • When to plant: Direct seed in fall for spring germination
  • Soil prep: Ensure good drainage – amend clay soils with sand or gravel if needed
  • Watering: Water lightly until established, then reduce to occasional deep watering
  • Maintenance: Minimal! Let plants self-seed for natural colonies
  • Harvesting seeds: Collect seeds after flowers fade if you want to expand your planting

The Bottom Line

Coast range cryptantha may not be the showiest flower in the garden, but it offers something more valuable: authentic native character and effortless beauty. If you appreciate plants with subtle charm and ecological value, and you can source it responsibly, this California native makes a wonderful addition to natural landscapes and native plant gardens. Just remember to buy from reputable sources to help protect wild populations of this somewhat uncommon species.

Coast Range Cryptantha

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

Lamiales

Family

Boraginaceae Juss. - Borage family

Genus

Cryptantha Lehm. ex G. Don - cryptantha

Species

Cryptantha corollata (I.M. Johnst.) I.M. Johnst. - coast range cryptantha

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