When to plant elderberries in Hermiston, OR

Plant elderberry shrubs in Hermiston Mar 20 – May 15.

Easy Plant bare-root or potted shrubs

Difficulty: Easy
Sun: Full sun to part shade
Spacing: 6 to 8 feet apart
Planting depth: Same depth as in the pot
Frost: Hardy perennial; comes back every year
First harvest: Some berries in year two; full crops from year three

Why these dates

Hermiston's typical last spring frost is April 26. As a hardy perennial, this crop doesn't need to wait for that date. In the Columbia Basin and low eastern valleys, though, the soil usually isn't ready to work until about March 20.

Columbia Basin and low eastern valleys. Hot, dry summers and quick spring warm-up. Warm crops go in earlier than west of the Cascades, and irrigation matters more than rain.

How to grow elderberries in Hermiston

Pick a sunny spot with soil that drains well, and mix in an inch or two of compost.
Plant elderberry shrubs Mar 20 – May 15, 6 to 8 feet apart. Same depth as in the pot.
Plant two varieties for better crops. Water through the first summer, and cut out old, weak canes in late winter to keep the shrub productive.
Harvest: Cut whole clusters when nearly all the berries are dark and soft. Strip the berries off the stems and cook them before eating.

Key numbers

6–12 feetShrub size
Most, even dampSoil
Year 2–3First crops
Raw berries and stemsBiggest risk

Growing notes

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

Which elderberries to grow

Blue elderberry is native across much of the Northwest, from sunny west-side valleys to the dry east side, and its berries are the edible kind when cooked. American and European elderberry varieties like York, Adams and Nova are bred for bigger fruit clusters and grow well on both sides of the Cascades. Red elderberry, the common native on the west side, is lovely for birds but its berries are not for eating.

Safety in the kitchen

Elderberry leaves, stems, roots and unripe berries contain compounds that can cause nausea and vomiting. Strip ripe berries off every bit of stem (freezing the clusters first makes it easy), and always cook them into syrup, jam or pie. The flowers are also edible and make a classic cordial.

Planting and care

Elderberries are fast, tough shrubs that tolerate damp soil, some shade and neglect. Plant two varieties for better crops, water through the first summer and keep mulch around the shallow roots. Canes fruit best in their second and third years; cut out older ones at ground level in late winter. They spread by suckers, so give them room or mow around them.

Common questions

When is the last frost in Hermiston, OR?

Typically April 26. In 9 years out of 10, frost is over by May 10. These are 1991–2020 NOAA climate normals for Hermiston Municipal Airport.

Is it too late to plant elderberries in Hermiston?

The spring planting window runs through May 15. Potted plants can still go in later if you water them faithfully through their first summer.

How long until I can pick elderberries?

Some berries in year two; full crops from year three. Cut whole clusters when nearly all the berries are dark and soft. Strip the berries off the stems and cook them before eating.

Can you eat raw elderberries?

No. Raw berries can cause stomach upset. Cook them first, and remove all stems and leaves.

Is the native red elderberry edible?

Its berries are not recommended for eating. Grow blue elderberry or a fruiting variety like York or Adams if you want berries.

Do I need two elderberry plants?

Most set some fruit alone, but you'll get much bigger crops with two different varieties planted near each other.

Also plant in Hermiston around the same time

Planting dates for elderberries in nearby areas

Baker City, OR Apr 20 – Jun 15
Pendleton, OR Mar 20 – May 15
The Dalles, OR Mar 20 – May 15
Hood River, OR Mar 20 – May 15
Ontario, OR Mar 20 – May 15
La Grande, OR Apr 1 – May 27

Full planting calendar for Hermiston · Elderberries in every city