Native Plants

Henderson’s Checkerbloom

Sidalcea hendersonii

USDA symbol: SIHE4

perennial forb

Alaska: native
Canada: native
Lower 48 states: native

If you’re looking to add a touch of delicate pink charm to your native garden while supporting local ecosystems, Henderson’s checkerbloom (Sidalcea hendersonii) might just be the perfect perennial for you. This lovely native wildflower brings both beauty and ecological value to Pacific Northwest gardens, though its rarity means we ...

Henderson’s Checkerbloom may be listed as rare in your area.
Global Conservation Status

Status: S3 | 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.

Henderson’s Checkerbloom: A Rare Pacific Northwest Native Worth Growing Responsibly

If you’re looking to add a touch of delicate pink charm to your native garden while supporting local ecosystems, Henderson’s checkerbloom (Sidalcea hendersonii) might just be the perfect perennial for you. This lovely native wildflower brings both beauty and ecological value to Pacific Northwest gardens, though its rarity means we need to be thoughtful about how we grow it.

What Makes Henderson’s Checkerbloom Special

Henderson’s checkerbloom is a charming perennial forb—essentially a non-woody flowering plant that comes back year after year. Unlike its woody shrub neighbors, this plant stays relatively soft and herbaceous, putting its energy into gorgeous pink to rose-colored flower spikes rather than building thick stems.

What really sets this plant apart is its native pedigree. As a true native to Alaska, Canada, and the lower 48 states, it has co-evolved with local wildlife and growing conditions for thousands of years. You’ll find it naturally growing in British Columbia, Alaska, Oregon, and Washington, where it has adapted to the unique climate patterns of the Pacific Northwest.

  • Species observed
  • No observations

Important Conservation Note

Before we dive into growing tips, there’s something important every gardener should know: Henderson’s checkerbloom has a Global Conservation Status of S3, meaning it’s considered vulnerable. With typically only 21 to 100 occurrences or between 3,000 and 10,000 individuals remaining in the wild, this beautiful native needs our help.

This doesn’t mean you can’t grow it—quite the opposite! Growing native plants like Henderson’s checkerbloom in our gardens can actually help preserve these species. However, it does mean you should only source your plants or seeds from reputable native plant nurseries that propagate their stock responsibly, never from wild collection.

Garden Appeal and Design Role

Henderson’s checkerbloom brings a soft, cottage garden feel to native landscapes. Its delicate pink flower spikes create lovely vertical interest and pair beautifully with other Pacific Northwest natives. The plant works wonderfully in:

  • Native plant gardens as a colorful accent
  • Wildflower meadows for natural charm
  • Wildlife gardens to support local pollinators
  • Cottage-style gardens with a native twist

Pollinator and Wildlife Benefits

One of the best reasons to grow Henderson’s checkerbloom is its value to local wildlife. The flowers are magnets for native bees, butterflies, and other pollinators who have evolved alongside this plant. By adding it to your garden, you’re essentially setting up a native pollinator café that serves exactly what your local wildlife needs.

Growing Conditions and Care

The good news is that Henderson’s checkerbloom isn’t particularly fussy once you understand its preferences. This adaptable native can handle a range of conditions, which explains its interesting wetland status—it’s facultative upland in Alaska (preferring drier sites) but facultative wetland in western mountain regions (preferring moister spots).

Here’s what this plant loves:

  • Light: Partial shade to full sun
  • Soil: Moist to moderately dry, well-draining soils
  • Hardiness: USDA Zones 7-9
  • Water: Moderate moisture, adapts to local rainfall patterns

Planting and Care Tips

Getting Henderson’s checkerbloom established in your garden is relatively straightforward:

  • Timing: Plant in spring after the last frost
  • Spacing: Give plants room to spread naturally
  • Mulching: Apply organic mulch to retain moisture and suppress weeds
  • Maintenance: Once established, this native requires minimal care
  • Watering: Water regularly the first year, then let natural rainfall take over

Should You Grow Henderson’s Checkerbloom?

If you live within this plant’s native range and want to support local ecosystems while adding gentle beauty to your garden, Henderson’s checkerbloom is definitely worth considering. Its vulnerable status makes it even more important for gardeners to grow—we can be part of the conservation solution.

Just remember to source your plants responsibly from nurseries that propagate rather than wild-collect, and you’ll be doing your part to help this lovely native thrive for future generations. Plus, your local pollinators will thank you for the native buffet!

Henderson’s checkerbloom proves that sometimes the most special garden additions are the ones that have been quietly growing in our own backyards all along—we just need to give them the space and respect they deserve.

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 hendersonii S. Watson - Henderson's checkerbloom

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