North America Native Plant

Hairy Checkerbloom

Botanical name: Sidalcea hirsuta

USDA symbol: SIHI2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Hairy Checkerbloom: A Rare California Native for Wetland Gardens Meet the hairy checkerbloom (Sidalcea hirsuta), a charming California native that’s as unique as its name suggests! This delightful annual forb brings a touch of wild beauty to wetland gardens while supporting local ecosystems. If you’re looking to create an authentic ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: Status is uncertain but is somewhere between the following rankings: 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 ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Hairy Checkerbloom: A Rare California Native for Wetland Gardens

Meet the hairy checkerbloom (Sidalcea hirsuta), a charming California native that’s as unique as its name suggests! This delightful annual forb brings a touch of wild beauty to wetland gardens while supporting local ecosystems. If you’re looking to create an authentic California native landscape with a focus on water-wise and wetland gardening, this little-known gem deserves your attention.

What Makes Hairy Checkerbloom Special

Hairy checkerbloom is a true California original, found exclusively within the Golden State’s diverse landscapes. As an annual forb, this plant completes its entire life cycle in just one growing season, making it a fast-growing addition to your garden. The plant produces lovely pink to rose-colored flowers arranged in tall, elegant spikes that bloom from late spring through summer, creating a striking vertical accent in wetland settings.

Where You’ll Find This Native Beauty

This special plant calls California home and only California. It’s naturally distributed throughout various regions of the state, where it thrives in the state’s unique Mediterranean climate and specialized wetland habitats.

A Word About Rarity

Here’s something important to know: hairy checkerbloom has a conservation status of S3S4, which indicates it’s somewhat uncommon and deserves our attention. This doesn’t mean you can’t grow it, but it does mean you should source your plants or seeds responsibly from reputable native plant nurseries or seed suppliers. Never collect from wild populations!

Perfect for Wetland Gardens

If you’re dreaming of a water garden, rain garden, or naturalized wetland area, hairy checkerbloom might be your perfect match. This plant is classified as an Obligate Wetland species, meaning it almost always occurs in wetlands in nature. This makes it an excellent choice for:

  • Pond and stream edges
  • Rain gardens and bioswales
  • Seasonal wetland restoration projects
  • Native California landscape designs
  • Areas with consistently moist soil

Growing Conditions and Care

Success with hairy checkerbloom is all about understanding its wetland preferences. This plant thrives in USDA hardiness zones 8-10, making it well-suited to California’s climate. Here’s what it needs to flourish:

  • Moisture: Consistently moist to wet soils – this is non-negotiable!
  • Sunlight: Full sun to partial shade
  • Soil: Adaptable to various soil types as long as they stay moist
  • Planting time: Spring is ideal for establishment
  • Maintenance: Low maintenance once established, minimal fertilization needed

Supporting Local Wildlife

Like many native plants, hairy checkerbloom serves as more than just a pretty face in your garden. Its nectar-rich flowers attract native bees and butterflies, making it a valuable addition to pollinator-friendly landscapes. By growing this native species, you’re helping support California’s local ecosystem and providing resources for wildlife that co-evolved with these plants.

Is Hairy Checkerbloom Right for Your Garden?

Consider adding hairy checkerbloom to your garden if you:

  • Live in California and want to grow true natives
  • Have a consistently moist or wet area in your landscape
  • Are creating a rain garden or wetland restoration project
  • Want to support local pollinators and biodiversity
  • Appreciate unique, lesser-known native plants

However, this plant might not be the best choice if you have dry garden conditions or can’t provide consistent moisture. Remember, as an annual, you’ll need to replant each year or allow it to self-seed in suitable conditions.

The Bottom Line

Hairy checkerbloom represents the incredible diversity of California’s native flora. While it may not be the easiest plant to grow due to its specific moisture requirements, it offers unique beauty and ecological value that make it worth considering for the right garden situation. Just remember to source it responsibly and give it the wet conditions it craves. Your local pollinators will thank you!

Hairy 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 hirsuta A. Gray ex Benth. - hairy checkerbloom

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