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When to Plant Currants in Wasco County, OR

Wasco County, Oregon Zone 7a May

Your May game plan for Wasco County, Oregon

Each item below is timed to Wasco County, Oregon's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 23
Avg. first frost October 12
Soil temp (4") 63°F
Watering High
Pest pressure Low
Daylight 14.7 hrs
  1. Move currants from tray to bed

    Water the tray well an hour before you transplant. Roots slide out cleanly and settle in faster.

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Currants are small, tart berries that grow on attractive shrubs in red, white, and black varieties. They are prized for jams, jellies, and liqueurs.

Wasco County, Oregon is in USDA Zone 7a. The average last spring frost is April 23 and the first fall frost is October 12, giving you a growing season of approximately 172 days.

At an elevation of 432 feet, Wasco County receives approximately 35.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 80°F, so choose short-season varieties of Currants to ensure they mature before fall.

Wasco County, OR (Zone 7a) Moderate season
172 days
Last Spring Frost April 23
172 growing days
First Fall Frost October 12

Wasco County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: May 5
Recommended (50%) ✓ Fits season
Transplant: May 14
Safe Start (90%) ✓ Fits season
Transplant: Jun 3

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Wasco County

How your county's soil matches Currants's growing requirements.

Soil pH

Your soil pH (5.2–6.3) is more acidic than Currants prefers (6.0–6.5). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Wasco County is excellent for Currants — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (5.2%) — Currants will thrive.

How to Plant Currants

48"
Between Plants
72"
Between Rows

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Currants

Currants needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Currants Needs Rainfall You Supplement Action
Jan 4.3" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4" 0" ❄️ Dormant
Apr 3.5" 2.6" 0.9" 💧 Light watering
May 3.5" 2.1" 1.4" 💧 Light watering
Jun 3.5" 1.5" 2" 🚿 Regular watering
Jul 3.5" 0.6" 2.9" 🚿 Regular watering
Aug 3.5" 0.7" 2.8" 🚿 Regular watering
Sep 3.5" 1.5" 2" 🚿 Regular watering
Oct 3.5" 3.4" 0.1" 💧 Light watering
Nov 5.1" 0" ❄️ Dormant
Dec 5.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Wasco County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Currants Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Currants needs ~9,125 GDD — county provides 1,720 GDD May not mature

Currants Planting Timeline — Wasco County, OR

Currants Planting Calendar

Activity When Date Range
Transplant Outdoors May 14 May 14 – May 28

· 48" apart · Rows 72" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Transplant Outdoors
June
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 6–6.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7a

📆 Growing Season

172 days in Wasco County

Growing Tips for Currants in Wasco County

Direct sow Currants outdoors after April 23 in Wasco County when soil has warmed and frost danger has passed.

Your 172.0-day growing season in Wasco County is tight for Currants (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant in a sheltered location with morning sun. Prune out wood older than 3 years to encourage new fruiting wood. Mulch heavily to keep roots cool and moist.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Currants in Wasco County, OR?

Wasco County is in Zone 7a with an average last frost of April 23. Plan your Currants planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wasco County, OR?

Wasco County, Oregon is in USDA Hardiness Zone 7a. The average last spring frost is April 23 and first fall frost is October 12.

🌱

Your Wasco County Garden Planner — Free

A 24-page printable planner built for Wasco County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Wasco County, OR. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.