North America Native Plant

Oregon Checkerbloom

Botanical name: Sidalcea oregana spicata

USDA symbol: SIORS

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Sidalcea oregana (Nutt. ex Torr. & A. Gray) A. Gray var. spicata (Regel) Jeps. (SIORS2)  âš˜  Sidalcea setosa C.L. Hitchc. (SISE)  âš˜  Sidalcea setosa C.L. Hitchc. ssp. querceta (SISEQ)  âš˜  Sidalcea spicata (Regel) Greene (SISP5)  âš˜  Sidalcea spicata (Regel) Greene var. tonsa M. Peck (SISPT)   

Oregon Checkerbloom: A Beautiful Native Wildflower for Pacific Coast Gardens If you’re looking to add a touch of wild beauty to your garden while supporting native ecosystems, Oregon checkerbloom might just be the perfect addition to your landscape. This charming native wildflower brings delicate pink blooms and natural elegance to ...

Rare plant alert!

Region: Conservation status by state

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

Oregon Checkerbloom: A Beautiful Native Wildflower for Pacific Coast Gardens

If you’re looking to add a touch of wild beauty to your garden while supporting native ecosystems, Oregon checkerbloom might just be the perfect addition to your landscape. This charming native wildflower brings delicate pink blooms and natural elegance to any garden setting.

What is Oregon Checkerbloom?

Oregon checkerbloom (Sidalcea oregana spicata) is a native perennial wildflower that belongs to the mallow family. As a forb herb, it’s a non-woody plant that dies back to the ground each winter but returns faithfully each spring. You might also see it listed under several botanical synonyms, including Sidalcea spicata or Sidalcea setosa, but they all refer to this lovely Pacific Coast native.

Where Does Oregon Checkerbloom Grow Naturally?

This beautiful wildflower is native to the western United States, specifically calling California, Nevada, and Oregon home. It’s perfectly adapted to the unique climate and growing conditions of the Pacific Coast region, making it an excellent choice for gardeners in these areas who want to create authentic native landscapes.

Why Grow Oregon Checkerbloom in Your Garden?

There are several compelling reasons to consider adding this native beauty to your landscape:

  • Stunning summer blooms: Produces spikes of delicate pink to rose-colored flowers that create a cottage garden feel
  • Pollinator magnet: Attracts beneficial bees and butterflies to your garden
  • Low maintenance: Once established, it’s quite drought tolerant and requires minimal care
  • Native plant benefits: Supports local ecosystems and wildlife
  • Naturalistic beauty: Perfect for wildflower meadows and informal garden settings

Important Conservation Note

Before planting Oregon checkerbloom, it’s worth noting that this variety has an uncertain conservation status. While it’s not considered invasive or noxious, its exact rarity status is unclear. If you choose to grow this plant, please source it responsibly from reputable native plant nurseries rather than collecting from wild populations.

Perfect Garden Settings for Oregon Checkerbloom

This versatile native works beautifully in several garden styles:

  • Native plant gardens: Pairs wonderfully with other Pacific Coast natives
  • Wildflower meadows: Creates natural-looking drifts of color
  • Cottage gardens: Adds informal charm with its delicate flower spikes
  • Pollinator gardens: Provides important nectar sources for beneficial insects

Growing Conditions and Care

Oregon checkerbloom is refreshingly easy to grow once you understand its preferences:

  • Sunlight: Thrives in full sun to partial shade
  • Soil: Prefers well-drained soil; avoid waterlogged conditions
  • Water: Drought tolerant once established, though benefits from occasional deep watering
  • Climate: Best suited for USDA hardiness zones 7-9

Planting and Care Tips

Getting your Oregon checkerbloom off to a good start is straightforward:

  • Plant in spring after the last frost date
  • Space plants appropriately to allow for air circulation
  • Water regularly during the first growing season to help establish roots
  • Once established, reduce watering frequency
  • Deadhead spent flowers to encourage continued blooming
  • Allow plants to go to seed if you want them to self-sow naturally

The Bottom Line

Oregon checkerbloom offers gardeners in the Pacific Coast region a wonderful opportunity to grow a beautiful native wildflower that supports local ecosystems while adding natural charm to the landscape. While its exact conservation status requires careful sourcing, this lovely perennial can be a rewarding addition to the right garden. Just remember to purchase from reputable native plant sources and enjoy watching the bees and butterflies visit your blooming checkerbloom spikes each summer!

Oregon Checkerbloom

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Malvales

Family

Malvaceae Juss. - Mallow family

Genus

Sidalcea A. Gray - checkerbloom

Species

Sidalcea oregana (Nutt. ex Torr. & A. Gray) A. Gray - Oregon checkerbloom

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