Western Wild Ginger

Highlights

Western wild ginger (Asarum caudatum) makes an evergreen carpet of heart-shaped leaves for damp, shady ground. The leaves are glossy dark green, and they give off a ginger aroma when rubbed. Underneath, sitting right on the soil, are flowers most people never notice: brown-purple cups with three long, tapering tails, white inside with a purple central stripe.

It’s native to the Pacific Northwest and Northern California, from the coast east into Montana. It starts slow, then creeps outward a few inches a year. Just don’t cook with it. Despite the name, it’s no relation to the ginger in your spice drawer.

Is western wild ginger a good choice for my yard?

Yes, if…

• You have moist shade. Calscape says that in the garden it must have regular water and virtually no direct sun.
• You want green on the ground all winter. The Forest Service calls it evergreen in most of its range.
• Your soil is rich and on the acidic side. It likes soil that’s moist but well-drained and neutral to acidic.
• Deer pass through your yard. Calscape and Benton Soil and Water Conservation District both list it as deer resistant.

Skip it if…

• Your shade is dry. Dust under a big maple or a strip beneath the eaves will leave it sulking.
• Slugs rule your garden. The Forest Service notes it’s palatable to slugs, and Benton SWCD adds, a little wryly, that slugs love it.
• Pets or toddlers chew on plants. Gardenia lists it as toxic to cats, dogs, and horses.
• You want fast cover. The UW data sheet calls it a slow-growing plant.
• You’re outside its range. It’s native to five western states and wants cool, damp woods.

Why western wild ginger matters

In the wild it lives in the understory of conifer forests, usually in moist or wet sites. Its rhizomes and trailing stems root freely and form large mats, a soft green floor under hemlocks and firs.

Small animals eat from it. In one California study, the Forest Service reports, rodents fed on numerous mature fruits, and a Forest Service Plant of the Week page calls it an important food source for rodents. The same review suggests it may matter to the northern Idaho pocket gopher. Ants carry off the seeds, too (more on that below).

It’s also a plant of long-undisturbed shade. The Forest Service notes it is commonly killed by even low-severity fires, so it does best where the ground is left alone. A garden colony is a small way to keep one going.

Where western wild ginger shines in your yard

• Under conifers, where the soil stays shaded and damp.
• A north-facing slope that grass never liked.
• The edge of a shady path, where you can lift a leaf and find the flowers.
• Around ferns and shade shrubs, as the evergreen layer at their feet.
• A moist woodland garden in the Pacific Northwest or Northern California.

How to grow western wild ginger

Light

Part shade to full shade, with little or no direct sun. Gardenia calls it a part shade to full shade lover. The north side of a house or the ground under tall conifers is ideal.

Soil and water

Give it rich, moist soil that drains, and leave fallen leaves and needles in place as mulch. Water regularly, especially in the first couple of years. Phoenix Perennials notes it can endure some summer drought once established, but steady moisture keeps the leaves looking their best.

Planting

The University of Washington protocol suggests planting divisions in early spring or fall, using pieces with two leaves or a node. Set them shallow, about half an inch deep with the tip exposed, roughly a foot apart, and mulch. Plant closer if you’re in a hurry: Hansen’s Northwest Native Plant Database says that at a few inches apart, you will have a solid cover in a few seasons.

Be patient

The Forest Service says it has been described as slow growing. Once settled, the UW protocol says it generally spreads up to 6 inches in all directions each year.

Slugs

Sources disagree. The Forest Service and Benton SWCD say slugs eat it, while Phoenix Perennials and Gardenia call it resistant. Keep an eye on new transplants in a wet spring, and go out with a flashlight after dark if leaves start to look lacy.

From seed

Seed is slow and fussy, which is why most people start with divisions. The UW protocol calls seed propagation difficult, needing a warm period and then a cold, moist one.

The Forest Service places it in moist, shady woodlands, including western hemlock and grand fir forests. In Washington, the Burke Herbarium notes it grows on both sides of the Cascades crest.

Who pollinates western wild ginger?

The flowers sit at ground level, dark and tailed, and it’s easy to picture beetles or fungus gnats crawling in. Mostly, the plant doesn’t wait for them. Flora of North America says Asarum flowers are predominantly self-pollinated, with occasional visits from fungus-feeding flies.

The Forest Service adds that cross-pollination is rare in northern California populations, likely because the flowers offer no nectar or fragrance to bring insects in.

The mushroom-mimic story you may have read comes from research on relatives. In a four-year study of Asarum hartwegii, another western wild ginger, Michael Mesler and Karen Lu found fly eggs in 38 percent of more than 1,100 flowers, mostly from one fly, Suillia thompsoni. Flowers with eggs set fruit more often, so the flies seem to help a little. For western wild ginger itself, self-pollination does most of the work.

What are good pairings for western wild ginger?

Pair it with other plants of the damp western forest floor: western sword fern, inside-out flower, trilliums, bleeding heart and bunchberry. For taller layers, add salal or vine maple.

Where can I buy western wild ginger?

Native nurseries in the Pacific Northwest and Northern California carry it in pots, and plant society sales are a good bet in spring. Phoenix Perennials and Hansen’s Wild Garden both list it. Check that the tag says Asarum caudatum, not European wild ginger, Asarum europaeum, a lookalike from overseas. Start with our list of native plant nurseries or order online.

Western wild ginger is a plant for the shady, damp corner most of us don’t know what to do with. Give it water and patience, keep the slugs in check, and it turns that ground into a glossy green floor that stays put all winter. For more Northwest shade plants, see our guide to native ferns. Happy planting!

Written by

Emily Lessard

Founder & Editor, The Plant Native

Emily Lessard is the founder and editor of The Plant Native, the site that helps homeowners across North America get started with native plants. She holds a Sustainable Landscapes certificate through the Pennsylvania Landscape & Nursery Association, is finishing a Native Perennial Garden Design Certificate at Temple University, and is the author of Plant Native: A Practical Guide to Over 100 Native Plants of North America (Quarto, March 2027). She gardens outside Philadelphia in the 8.3 Southeastern Plains ecoregion.

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Updated October 12, 2026Find more: Evergreen · Flower

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