North America Native Plant

California Stickseed

Botanical name: Hackelia californica

USDA symbol: HACA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

California Stickseed: A Charming Native Wildflower for Pacific Coast Gardens If you’re looking to add some authentic West Coast charm to your native garden, California stickseed might just be the unsung hero you’ve been searching for. This delightful perennial wildflower (Hackelia californica) brings subtle beauty and important ecological benefits to ...

California Stickseed: A Charming Native Wildflower for Pacific Coast Gardens

If you’re looking to add some authentic West Coast charm to your native garden, California stickseed might just be the unsung hero you’ve been searching for. This delightful perennial wildflower (Hackelia californica) brings subtle beauty and important ecological benefits to gardens throughout its native range.

What is California Stickseed?

California stickseed is a native perennial forb – essentially a non-woody flowering plant that comes back year after year. Don’t let the stickseed name put you off; it simply refers to the plant’s small, slightly clingy seeds that help it spread naturally in the wild. This hardy little plant is perfectly adapted to West Coast growing conditions and has been thriving in these landscapes for thousands of years.

Where Does It Grow Naturally?

California stickseed is native to California and Oregon, making it a true Pacific Coast native. It’s naturally found in a variety of habitats from coastal areas to inland valleys, showing off its adaptability to different growing conditions within its range.

Why Consider California Stickseed for Your Garden?

This modest but charming wildflower offers several compelling reasons to earn a spot in your native garden:

  • True native status: Supporting local ecosystems by growing plants that naturally belong in your area
  • Pollinator magnet: The small blue to white flowers attract native bees and other beneficial pollinators
  • Low maintenance: Once established, it’s quite drought tolerant and requires minimal care
  • Natural look: Perfect for naturalized areas and wildlife gardens
  • Self-seeding: Will spread naturally to create lovely drifts over time

What Does It Look Like?

California stickseed produces clusters of small, delicate flowers that can range from blue to white, typically blooming in spring and early summer. The plant has a somewhat rough-textured foliage that gives it character, and it grows as a herbaceous perennial that dies back in winter and returns each spring.

Growing Conditions and Care

One of the best things about California stickseed is how easy-going it is once you understand its preferences:

  • Light: Partial shade to full sun – quite adaptable
  • Soil: Well-draining soil is essential; it doesn’t like to sit in wet conditions
  • Water: Drought tolerant once established, but appreciates occasional water during dry spells
  • Climate: Hardy in USDA zones 7-10, matching its native range

Planting and Establishment Tips

Getting California stickseed started in your garden is refreshingly straightforward:

  • Best planting time: Fall seeding works well, allowing natural winter stratification
  • Spacing: Give plants room to spread naturally – they’ll self-seed where happy
  • Establishment period: Be patient the first year as the plant develops its root system
  • Maintenance: Minimal once established – just ensure good drainage and avoid overwatering

Perfect Garden Companions

California stickseed shines in native plant gardens and naturalized landscapes. It pairs beautifully with other Pacific Coast natives and works well in:

  • Woodland gardens
  • Wildlife habitat areas
  • Native plant borders
  • Naturalized meadow-style plantings

The Bottom Line

California stickseed may not be the showiest plant in your garden, but it’s exactly the kind of steady, reliable native that forms the backbone of healthy local ecosystems. If you’re gardening in California or Oregon and want to support local wildlife while adding authentic regional character to your landscape, this charming wildflower deserves serious consideration. It’s proof that sometimes the most valuable garden residents are the quiet contributors that work behind the scenes to create thriving, sustainable landscapes.

California Stickseed

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

Hackelia Opiz - stickseed

Species

Hackelia californica (A. Gray) I.M. Johnst. - California stickseed

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