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When to Plant Cucumber in Roanoke City, VA

Roanoke City, Virginia Zone 7b May

What to do in May

A quick May briefing for Roanoke City, Virginia gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 25
Avg. first frost October 20
Soil temp (4") 69°F
Watering Low
Pest pressure Moderate
Daylight 14 hrs
  1. Move cucumber into the garden

    Pinch off the lowest leaves on each seedling before you plant — it reduces water loss while the roots catch up.

  2. Direct-sow cucumber

    Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.

  3. Get cucumber seeds going inside

    Label every cell. You will absolutely forget which is which otherwise.

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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.

Roanoke City, Virginia is in USDA Zone 7b. The average last spring frost is April 25 and the first fall frost is October 20, giving you a growing season of approximately 178 days.

At an elevation of 336 feet, Roanoke City receives approximately 53.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Cucumber during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cucumber root diseases.

Roanoke City, VA (Zone 7b) Moderate season
178 days
Last Spring Frost April 25
178 growing days
First Fall Frost October 20

Roanoke City Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (55 days to spare)
Start indoors: Mar 21 Transplant: May 2 🍅 Harvest: Jun 27 – Aug 22
Recommended (50%) ✓ Fits season (52 days to spare)
Start indoors: Mar 28 Transplant: May 9 🍅 Harvest: Jul 4 – Aug 29
Safe Start (90%) ✓ Fits season (46 days to spare)
Start indoors: Apr 16 Transplant: May 28 🍅 Harvest: Jul 23 – Sep 17

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 Roanoke City

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

Soil pH

Your soil pH (5.4–6.5) is more acidic than Cucumber prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Roanoke City is excellent for Cucumber — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Cucumber.

How to Plant Cucumber

0.5"
Planting Depth
24"
Between Plants
48"
Between Rows

Succession Planting Cucumber

4
successive plantings in your 178-day season

Sow every 5.7 weeks. Last sowing by Aug 11 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.3″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 365 gal / 100 sq ft

Monthly Watering Guide for Cucumber

Cucumber needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Cucumber Needs Rainfall You Supplement Action
Jan 4.5" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.8" 0" ❄️ Dormant
Apr 6.5" 4.2" 2.3" 💧 Light watering
May 6.5" 4.8" 1.7" 💧 Light watering
Jun 6.5" 4.6" 1.9" 💧 Light watering
Jul 6.5" 5.8" 0.7" 💧 Light watering
Aug 6.5" 5.6" 0.9" 💧 Light watering
Sep 6.5" 3.6" 2.9" 💧 Light watering
Oct 6.5" 3.2" 3.3" 🚿 Regular watering
Nov 4.7" 0" ❄️ Dormant
Dec 4" 0" ❄️ Dormant

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

Cucumber 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.

Cucumber needs ~1,230 GDD — county provides 3,649 GDD Excellent fit

Cucumber Planting Timeline — Roanoke City, VA

Cucumber Planting Calendar

Activity When Date Range
Start Indoors March 28 Mar 28 – Apr 11
Transplant Outdoors May 9 May 9 – May 23
Direct Sow May 2 May 2 – May 23
Harvest July 4 Jul 4 – Aug 29

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7b

📆 Growing Season

178 days in Roanoke City

Growing Tips for Cucumber in Roanoke City

Direct sow Cucumber outdoors after April 25 in Roanoke City when soil has warmed and frost danger has passed.

Common pests for Cucumber in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

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 Roanoke City, VA?

Roanoke City is in Zone 7b with an average last frost of April 25. Plan your Cucumber planting based on this frost date — see the calendar above for exact timing.

What planting zone is Roanoke City, VA?

Roanoke City, Virginia is in USDA Hardiness Zone 7b. The average last spring frost is April 25 and first fall frost is October 20.

🌱

Your Roanoke City Garden Planner — Free

A 24-page printable planner built for Roanoke City (Zone 7b). 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 Roanoke City, VA. 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.