North America Native Plant

Eastwood’s Bellflower

Botanical name: Campanula angustiflora

USDA symbol: CAAN3

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Eastwood’s Bellflower: A Rare California Native Worth Protecting If you’re a native plant enthusiast with a passion for rare and unique species, Eastwood’s bellflower (Campanula angustiflora) might just capture your heart. This diminutive annual is one of California’s hidden botanical treasures, though finding reliable information about growing it can be ...

Rare plant alert!

Region: Conservation status by state

Status: S2?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Eastwood’s Bellflower: A Rare California Native Worth Protecting

If you’re a native plant enthusiast with a passion for rare and unique species, Eastwood’s bellflower (Campanula angustiflora) might just capture your heart. This diminutive annual is one of California’s hidden botanical treasures, though finding reliable information about growing it can be as elusive as finding the plant itself in the wild.

What Makes Eastwood’s Bellflower Special?

Eastwood’s bellflower is a true California native, belonging to the beloved bellflower family that gardeners know and love. As an annual forb, this herbaceous plant completes its entire life cycle in just one growing season, making every bloom precious and fleeting. Unlike its more robust perennial cousins, this delicate native puts all its energy into one spectacular show before setting seed for the next generation.

Where Does It Call Home?

This rare beauty is exclusively native to California, making it a true Golden State endemic. Its limited distribution contributes to its special conservation status, and you’re unlikely to stumble across it during a casual wildflower walk.

A Word About Rarity

Here’s where things get serious: Eastwood’s bellflower has a Global Conservation Status of S2?, which indicates it’s considered rare and potentially vulnerable. This means that if you’re lucky enough to encounter this plant or have the opportunity to grow it, you have a responsibility to handle it with care.

Important: If you’re interested in growing Eastwood’s bellflower, please ensure any seeds or plants come from reputable, ethical sources that don’t harvest from wild populations. Better yet, consider supporting conservation efforts that protect this species in its natural habitat.

Garden Potential and Growing Challenges

While Eastwood’s bellflower would undoubtedly be a conversation starter in any native plant garden, the reality is that cultivation information is extremely limited. As with many rare natives, this species likely has very specific growing requirements that mirror its natural habitat conditions.

What we do know:

  • It’s an annual, so you’ll need to collect seeds or allow self-seeding for future years
  • As a forb, it’s herbaceous rather than woody
  • Being California native, it likely prefers Mediterranean-type conditions
  • Its rarity suggests it may have narrow habitat preferences

Alternative Bellflowers for Your Garden

If you’re drawn to the idea of bellflowers but want something more readily available and easier to grow, consider these native alternatives:

  • California harebell (Campanula prenanthoides) – another California native that’s less rare
  • Desert bluebells (Phacelia campanularia) – not a true bellflower but offers similar blue blooms
  • Other regional native bellflowers appropriate to your specific location

Supporting Conservation

Sometimes the best way to grow a rare plant is to support its conservation in the wild. Consider donating to California native plant societies, participating in citizen science projects, or volunteering with organizations that protect rare plant habitats. Your garden might not have Eastwood’s bellflower, but your actions can help ensure it continues to thrive where it belongs.

Remember, not every native plant needs to be in cultivation to be appreciated and protected. Sometimes, the most responsible approach is to admire these botanical gems from afar while working to preserve their natural homes for future generations to discover and cherish.

Eastwood’s Bellflower

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

Campanulales

Family

Campanulaceae Juss. - Bellflower family

Genus

Campanula L. - bellflower

Species

Campanula angustiflora Eastw. - Eastwood's bellflower

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