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Oregon · Washington · Idaho

When to plant thimbleberry

Plant in the garden: Portland and Seattle Mar 1 – Apr 26; Spokane Apr 1 – May 27; Boise Mar 20 – May 15; Bend Apr 28 – Jun 23.

Thimbleberry is a native, thornless raspberry relative that grows about 4 to 6 feet tall. Its soft, shallow-cupped berries are tart-sweet and too fragile to ship, so they're mostly eaten off the bush or made into jam. It grows wild on both sides of the Cascades and into Idaho.

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Puts thimbleberry on your free plan, with dates for your town and a spot in your beds.

Difficulty
Easy
Sun
Part shade to full sun
Spacing
3 to 4 feet apart
Planting depth
Same depth as in the pot or nursery
Frost
Hardy perennial; comes back every year
First harvest
Berries the second summer

A thornless native relative of raspberries, with big maple-like leaves, white flowers and soft red berries in summer. It spreads by underground stems into a thicket, so give it a woodland edge or a wild corner.

Thimbleberry planting dates

TownsPlant in the garden
Portland, OR, Seattle and Tacoma, WAMar 1 – Apr 26
Spokane, WAApr 1 – May 27
Boise and Meridian, IDMar 20 – May 15
Bend and Redmond, ORApr 28 – Jun 23
Astoria, ORMar 25 – May 20

Dates for six main cities. For any of the other 80 towns, type it in the box at the top of the page or browse all towns.

Thimbleberry year at a glance

TaskJFMAMJJASOND
PlantMarApr
HarvestJulAug
In bloomMayJun

Around Portland. Colder towns, especially east of the Cascades, run a few weeks later; the table above has your town's planting dates. Harvest months are for an established plant.

How to grow thimbleberry

  1. Pick a spot in sun or part shade at a woodland edge or wild corner where it can spread, and loosen the soil.
  2. Plant potted thimbleberry on your city's dates, 3 to 4 feet apart. Same depth as in the pot or nursery.
  3. Water through the first summer. In late winter, cut canes that fruited to the ground, as with raspberries.
  4. Harvest: Pick in midsummer when the berries are deep red and slip off the core easily. They're soft and crumbly, so eat them fresh or make jam the same day.

Growing thimbleberry in your part of the Northwest

The same plant behaves differently on the wet west side, the foggy coast and the dry, colder east side.

West-side valleys

Willamette Valley, Puget Sound, southern Oregon

Thimbleberry is common in west-side woods and spreads into patches in part shade.

East of the Cascades

Columbia Basin, Yakima, Boise, Spokane, north Idaho

Thimbleberry grows wild along forest edges and streams east of the Cascades; give it some shade and summer water in gardens.

More thimbleberry varieties

More widely sold picks that do well somewhere in the Northwest. The tag says which part of the Northwest suits each one best.

Thimbleberry

Native shrub (Rubus parviflorus) · Ripens July to August

Sold as the wild species by native plant nurseries. Thornless, with big soft leaves, white flowers and soft red berries.

Both sides

How much to grow

How many to plant

Plant 3 or more, 3 to 4 feet apart. It spreads by underground stems into a patch.

What to expect

A small patch gives a few cups at a time through midsummer.

Storing the harvest

Soft and crumbly; eat fresh or make jam the same day.

Key numbers

Top care tip: Cut fruited canes to the ground each winter and pull suckers that stray.

Growing notes

What makes the difference in Northwest gardens, in plain language.

A native raspberry relative

Thimbleberry grows wild across the Northwest, from coastal forest edges to eastern mountains. It's a thornless shrub with big, soft, maple-shaped leaves, white flowers in late spring and flat, cup-shaped red berries in summer.

The flowers feed native bees and the fruit feeds birds, which makes it a good plant for a wildlife hedge or the edge of a wooded yard.

Planting and spreading

Plant in part shade to full sun in ordinary soil with some moisture. It grows in shade but fruits more in sun. Water through the first summer.

Thimbleberry spreads by underground stems and forms a thicket in a few years. That's ideal for a wild corner but not a tidy bed. Pull or mow suckers that stray.

Harvest and care

Berries ripen in mid to late summer. They're soft and seedy, with a tart-sweet flavor, and they crumble easily, so they don't travel. Eat them fresh or make jam.

Like raspberries, each cane fruits once. Cut old canes to the ground in late winter to keep the patch open.

Good neighbors

Grows well with

  • Salal and sword fern. The same woodland edge in part shade.
  • Salmonberry. Ripens earlier, so together they give berries from late spring through summer.

Pests and problems

What most often goes wrong with thimbleberry in Northwest gardens, how to spot it and what to do.

Spreading

Signs: Suckers pop up away from the patch.

What to do: Pull or mow strays.

Old canes

Signs: Dead, gray canes crowd the patch.

What to do: Cut canes that fruited to the ground in winter.

Common questions about growing thimbleberry

When should I plant thimbleberry in Oregon, Washington and Idaho?

Plant in the garden: Mar 1 – Apr 26 in Portland and Seattle, Apr 1 – May 27 in Spokane, Mar 20 – May 15 in Boise and Apr 28 – Jun 23 in Bend. Pick your town at the top of the page for your own dates.

Are thimbleberries edible?

Yes. They're soft, tart-sweet and good fresh or in jam.

Does thimbleberry have thorns?

No. Unlike most of its raspberry and blackberry relatives, it's thornless.

Does thimbleberry spread?

Yes, by underground stems. Plant it where a thicket is welcome.

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