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Sidalcea campestris

Native Oregon perennial wildflower from the Willamette Valley, grows tall to form large clumps with hollyhock-like blooms in blush-pink to white, is highly drought-tolerant, and readily self-seeds in sunny, meadow-like dry gardens.

Is Sidalcea campestris growing in your garden? Record it and all of your plants in Known.

Common Names

Meadow Checkermallow, Meadow Checkerbloom, Meadow Checker-Mallow, Meadow Sidalcea, Tall Wild Hollyhock, Tall Wild Checkermallow

Summary

Meadow Checkermallow (Sidalcea campestris) is a tall, herbaceous perennial native to the Willamette Valley of Oregon. It forms a clump from short, thick rhizomes, with gray-green, palmately divided leaves, and erect stems that reach about 2–6 ft tall. From May to July, open spikes bear five-petaled white to pink flowers, giving a hollyhock-like appearance and providing nectar for pollinators.

In cultivation, it prefers full sun to partial shade and moist to well-drained soil, tolerating drought once established. It suits meadow or wildflower plantings, attracts bees and butterflies, and can be established by seed, plugs, or divisions, with a tendency to self-sow in suitable conditions. It is valued for pollinator habitat and nectar sources in native landscapes.

Lifecycle

Perennial

Height

2-6 feet

Spread

12-24 inches

Hardiness Zones

Zones 4b-9b

Sunlight Requirements

Ideally full Sun to Partial Shade.

Soil Type

Well-drained soil (moist to rather dry conditions).

Soil Drainage

Well-drained

Bloom Color

White to Pink

Bloom Time

Spring and Summer

Foliage Color

Gray-green

Fall Foliage Color

Green

Leaf Lifecycle

Deciduous

Growth Rate

Fast

Seasons of Interest

Spring and Summer

Propagation Methods

Seeds and Division

Attracts Wildlife

Attracts bees, butterflies, and other pollinators, information about attraction of hummingbirds or birds is inconsistent across sources

Taxonomy

Taxonomic Rank
Species
Author
Greene
Publication
Bull. Calif. Acad. Sci. 1: 76 (1885)

Superior Taxa

Kingdom
Plantae
Subkingdom
Pteridobiotina
Phylum
Angiosperms
Order
Malvales
Family
Malvaceae
Genus
Sidalcea

Synonyms

Sidalcea asplenifolia Sidalcea sylvestris

References

Sidalcea campestris - Burke Herbarium Image Collec…. burkeherbarium.org.
Sidalcea campestris, Meadow Checkermallow. dancingoaks.com.
Sidalcea campestris. en.wikipedia.org.
Meadow Checkermallow Seeds (Sidalcea campestris). northwestmeadowscapes.com.
Sidalcea campestris - meadow checkermallow. oregonflora.org.
Checkermallow Love—for Beauty, Conservation, and P…. pacifichorticulture.org.
Sidalcea campestris | plant lust. plantlust.com.
Meadow Checkerbloom (Sidalcea campestris) Plant Fa…. plants.sc.egov.usda.gov.
Meadow Checkerbloom (Sidalcea campestris) Plant Fa…. plants.usda.gov.
Rose Creek SIDALCEA OREGANA - Wild Hollyhock Seeds…. plantsofthewild.com.
Sidalcea campestris Greene | Plants of the World O…. powo.science.kew.org.
Sidalcea campestris | meadow checkerbloom /RHS. rhs.org.uk.
Sidalcea campestris - Sevenoaks Native Nursery. sevenoaksnativenursery.com.
Meadow Checkermallow | Sidalcea campestris - Bento…. bentonswcd.org.
Sidalcea campestris at Digging Dog Nursery. diggingdog.com.
Meadow Checkermallow (Sidalcea campestris) | U.S. …. fws.gov.
Sidalcea: Checker Mallow. portlandnursery.com.
Sidalcea campestris. xeraplants.com.
Meadow Checkermallow - Yamhill Soil & Water Conser…. yamhillswcd.org.
World Flora Online. worldfloraonline.org. June 2024.