Native Plants

Oregon Checkerbloom

Sidalcea oregana spicata

USDA symbol: SIORS

perennial subshrub

Lower 48 states: native

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. Oregon checkerbloom (Sidalcea oregana spicata) is a ...

Oregon Checkerbloom may be listed as rare in your area.
Global Conservation Status

Status: S3?Q | Vulnerable: Found only in a restricted range (even if abundant at some locations). 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.

  • Species observed
  • No observations

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!

Sidalcea oregana spicata is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Sidalcea oregana spicata is also known as:

Sidalcea oregana Gray var. spicata | USDA symbol: SIORS2
Sidalcea setosa | USDA symbol: SISE
Sidalcea setosa ssp. querceta | USDA symbol: SISEQ
Sidalcea spicata | USDA symbol: SISP5
Sidalcea spicata Greene var. tonsa | USDA symbol: SISPT

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
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

Subspecies: Sidalcea oregana (Nutt. ex Torr. & A. Gray) A. Gray ssp. spicata (Regel) C.L. Hitchc. - 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