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When to Plant Okra in Clackamas County, OR

Clackamas County, Oregon Zone 8a April

What to do in April

April rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Clackamas County, Oregon.

Avg. last frost April 14
Avg. first frost October 28
Soil temp (4") 62°F
Watering Low
Pest pressure High
Daylight 13.3 hrs
  1. Time to transplant okra

    Harden off for 7 days — a little more sun each day — before planting. That's the difference between a seedling that thrives and one that stalls.

  2. Seed okra outdoors

    Mark the row. Birds and stray feet both have opinions about unmarked beds.

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Okra is a heat-loving tropical plant that produces edible seed pods. It thrives in hot summers and produces beautiful hibiscus-like flowers before setting pods.

Clackamas County, Oregon is in USDA Zone 8a. The average last spring frost is April 14 and the first fall frost is October 28, giving you a growing season of approximately 197 days.

At an elevation of 199 feet, Clackamas County receives approximately 53.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Okra during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Okra root diseases.

Clackamas County, OR (Zone 8a) Moderate season
197 days
Last Spring Frost April 14
197 growing days
First Fall Frost October 28
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Clackamas County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (71 days to spare)
Start indoors: Feb 14 Transplant: Apr 18 🍅 Harvest: Jun 13 – Aug 8
Recommended (50%) ✓ Fits season (71 days to spare)
Start indoors: Feb 24 Transplant: Apr 28 🍅 Harvest: Jun 23 – Aug 18
Safe Start (90%) ✓ Fits season (75 days to spare)
Start indoors: Mar 19 Transplant: May 21 🍅 Harvest: Jul 16 – Sep 10

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 Clackamas County

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

Soil pH

Your soil pH (5.7–6.3) overlaps with Okra's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (5.7%) — Okra will thrive.

How to Plant Okra

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Succession Planting Okra

4
successive plantings in your 197-day season

Sow every 5.7 weeks. Last sowing by Aug 24 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Okra

Okra needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Okra Needs Rainfall You Supplement Action
Jan 8.3" 0" ❄️ Dormant
Feb 5.3" 0" ❄️ Dormant
Mar 4.8" 0" ❄️ Dormant
Apr 3.9" 4" 0" ✅ Rainfall sufficient
May 3.9" 3.3" 0.6" 💧 Light watering
Jun 3.9" 2.1" 1.8" 💧 Light watering
Jul 3.9" 0.8" 3.1" 🚿 Regular watering
Aug 3.9" 1" 2.9" 🚿 Regular watering
Sep 3.9" 2.2" 1.7" 💧 Light watering
Oct 3.9" 4.7" 0" ✅ Rainfall sufficient
Nov 8.2" 0" ❄️ Dormant
Dec 8.5" 0" ❄️ Dormant

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

Okra 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.

Okra needs ~791 GDD — county provides 2,708 GDD Excellent fit

Okra Planting Timeline — Clackamas County, OR

Okra Planting Calendar

Activity When Date Range
Start Indoors February 24 Feb 24 – Mar 10
Transplant Outdoors April 28 Apr 28 – May 12
Direct Sow April 21 Apr 21 – May 12
Harvest June 23 Jun 23 – Aug 18

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors
April Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Harvest
August Harvest
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

50–65 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

197 days in Clackamas County

Growing Tips for Okra in Clackamas County

Direct sow Okra outdoors after April 14 in Clackamas County when soil has warmed and frost danger has passed.

General growing tips

Direct sow after soil reaches 65F. Soak seeds overnight to improve germination. Harvest pods when 2-4 inches long and still tender; they become tough if left too long.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Okra in Clackamas County, OR?

Clackamas County is in Zone 8a with an average last frost of April 14. Plan your Okra planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clackamas County, OR?

Clackamas County, Oregon is in USDA Hardiness Zone 8a. The average last spring frost is April 14 and first fall frost is October 28.

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Your Clackamas County Garden Planner — Free

A 24-page printable planner built for Clackamas County (Zone 8a). 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 Clackamas County, OR. Local conditions may vary. Last updated: April 2026.

Sources & credits

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