North America Native Plant

California Popcornflower

Botanical name: Plagiobothrys distantiflorus

USDA symbol: PLDI2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

California Popcornflower: A Delicate Native for Wetland Gardens Meet California popcornflower (Plagiobothrys distantiflorus), a charming little annual that’s perfectly at home in California’s wetland areas. This delicate native forb might not be the showiest plant in your garden, but it plays an important role in supporting local ecosystems and can ...

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 ⚘

California Popcornflower: A Delicate Native for Wetland Gardens

Meet California popcornflower (Plagiobothrys distantiflorus), a charming little annual that’s perfectly at home in California’s wetland areas. This delicate native forb might not be the showiest plant in your garden, but it plays an important role in supporting local ecosystems and can be a wonderful addition to the right growing conditions.

What Makes California Popcornflower Special

California popcornflower is a true California native, found exclusively within the Golden State’s borders. As an annual forb, it completes its entire life cycle in one growing season, producing small clusters of tiny white flowers that give the plant its whimsical popcornflower name. Don’t expect towering heights – this is a modest plant that focuses its energy on reproduction rather than impressive stature.

The plant grows naturally throughout California, from coastal areas to inland valleys, wherever suitable wetland conditions exist.

A Plant That Loves Its Water

Here’s where California popcornflower gets very specific about its needs: it’s classified as an obligate wetland species in both the Arid West and Western Mountains regions. This means it almost always occurs in wetlands and requires consistently moist to wet soil conditions to thrive. If you’re dreaming of a drought-tolerant garden, this isn’t your plant!

Garden Role and Landscape Uses

California popcornflower shines in specialized garden settings:

  • Wetland restoration projects
  • Rain gardens and bioswales
  • Seasonal wet areas in native plant gardens
  • Pond margins and stream edges
  • Conservation gardens focused on rare California natives

This plant works best as part of a diverse wetland plant community rather than as a standalone specimen. Its delicate white flowers add subtle beauty while supporting local pollinators and beneficial insects.

Conservation Considerations

California popcornflower has a Global Conservation Status of S3?, indicating some level of rarity or concern about its populations. If you’re interested in growing this species, make sure to source seeds or plants from reputable native plant nurseries that collect responsibly. Never collect from wild populations, as this can harm already vulnerable communities.

Growing California Popcornflower Successfully

Success with this plant requires understanding its specific needs:

Climate and Hardiness

California popcornflower thrives in USDA zones 8-10, matching California’s Mediterranean and coastal climates. It’s adapted to the state’s pattern of wet winters and dry summers.

Soil and Water Requirements

The key to success is consistent moisture. This plant needs:

  • Soil that stays moist to wet during the growing season
  • Good drainage to prevent stagnant conditions
  • Full sun to partial shade exposure
  • Rich, organic soil typical of wetland areas

Planting and Care Tips

As an annual, California popcornflower is typically grown from seed:

  • Direct seed in fall when winter rains begin
  • Seeds need consistent moisture to germinate
  • Plants may self-seed in suitable conditions
  • No summer water needed once plants complete their cycle
  • Minimal care required if growing conditions are right

Is California Popcornflower Right for Your Garden?

This native is perfect for gardeners who:

  • Have naturally wet areas or wetland garden features
  • Are creating rain gardens or bioswales
  • Want to support California’s native plant heritage
  • Appreciate subtle, delicate flowers
  • Are involved in habitat restoration projects

However, it’s not ideal if you:

  • Have only dry garden areas
  • Want low-maintenance, drought-tolerant plants
  • Prefer showy, long-lasting flowers
  • Don’t have consistent water access for wetland areas

Supporting California’s Native Heritage

Growing California popcornflower is more than just adding another plant to your garden – it’s about preserving a piece of California’s natural heritage. This modest annual plays its part in supporting local ecosystems, providing nectar for small pollinators and helping maintain the biodiversity that makes California’s landscapes so special.

If you have the right wet conditions and want to try something truly unique to California, this charming little popcornflower might just pop up as the perfect addition to your native wetland garden!

California Popcornflower

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

Plagiobothrys Fisch. & C.A. Mey. - popcornflower

Species

Plagiobothrys distantiflorus (Piper) I.M. Johnst. ex M. Peck - California popcornflower

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