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When to plant Cucumber in Cumberland County, IL

Aim to plant Cucumber in Cumberland County on or after April 21; the window stays open through May 12. Cumberland County's 186-day frost-free season gives you enough for a full main crop and a short fall succession.

When to Plant Cucumber in Cumberland County, IL

Cucumbers are a warm-season vine crop available in slicing and pickling varieties. They are prolific producers when given warmth, moisture, and a trellis to climb.

Cumberland County, Illinois is in USDA Zone 6b. The average last spring frost is April 14 and the first fall frost is October 17, giving you a growing season of approximately 186 days.

At an elevation of 772 feet, Cumberland County receives approximately 31.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Cucumber during the growing season.

Cumberland County, IL (Zone 6b) Moderate season
186 days
Last Spring Frost April 14
186 growing days
First Fall Frost October 17

Cumberland County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Cucumber Planting Timeline — Cumberland County, IL

Cucumber Planting Calendar

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

Plant 0.5" deep · 24" apart · Rows 48" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

High — keep soil consistently moist

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

186 days in Cumberland County

Growing Tips for Cumberland County

Direct sow after last frost or start indoors 3 weeks early. Provide a trellis for vining types to save space and improve air circulation. Harvest frequently to encourage production.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes
  • Sage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cucumber in Cumberland County, IL?

Cumberland County is in Zone 6b with an average last frost of April 14. Plan your Cucumber planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cumberland County, IL?

Cumberland County, Illinois is in USDA Hardiness Zone 6b. The average last spring frost is April 14 and first fall frost is October 17.

When should I plant Cucumber in Cumberland County, IL?

In Cumberland County, IL, plant Cucumber after the last frost (around April 14) and before the first frost (around October 17). Best results when soil holds above 50°F.

What growing zone is Cumberland County, IL for Cucumber?

Cumberland County sits in USDA Zone 6b. Cucumber grows reliably in zones 3a through 11b, so it's a good fit here.

Can Cucumber grow in Cumberland County's climate?

Yes — Cucumber grows well in Cumberland County's temperate climate. Cumberland County averages a 186-day frost-free season, with last frost around April 14 and first frost around October 17.

🌱

Your Cumberland County Garden Planner — Free

A 22-page printable planner built for Cumberland County (Zone 6b). 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 Cumberland County, IL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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