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When to Plant Cucumber in Donley County, TX

Donley County, Texas Zone 7b May

Your May gardening checklist

Your garden in Donley County, Texas is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost April 7
Avg. first frost October 31
Soil temp (4") 57°F
Watering High
Pest pressure Moderate
Daylight 13.8 hrs
  1. Sow cucumber in trays indoors

    These need a head start before your last frost (April 7). Sow into cells now so you're ready to transplant in a few weeks.

June will be here before you know it — start on
  • First harvests: cucumber

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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.

Donley County, Texas is in USDA Zone 7b. The average last spring frost is April 7 and the first fall frost is October 31, giving you a growing season of approximately 207 days.

At an elevation of 4,196 feet, Donley County receives approximately 57 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 100°F, so Cucumber may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Cucumber will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cucumber root diseases.

Donley County, TX (Zone 7b) Long season
207 days
Last Spring Frost April 7
207 growing days
First Fall Frost October 31
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Donley County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.8-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (84 days to spare)
Start indoors: Mar 1 Transplant: Apr 12 🍅 Harvest: Jun 7 – Aug 2
Recommended (50%) ✓ Fits season (81 days to spare)
Start indoors: Mar 10 Transplant: Apr 21 🍅 Harvest: Jun 16 – Aug 11
Safe Start (90%) ✓ Fits season (84 days to spare)
Start indoors: Mar 23 Transplant: May 4 🍅 Harvest: Jun 29 – Aug 24

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 Donley County

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

Soil pH

Your soil pH (7.8–8.2) is more alkaline than Cucumber prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Donley County warms quickly in spring but drains fast. Cucumber will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.0%). Add 2-3 inches of compost before planting Cucumber.

How to Plant Cucumber

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

Succession Planting Cucumber

4
successive plantings in your 207-day season

Sow every 5.7 weeks. Last sowing by Aug 22 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.2″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 759 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 4.3" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 3.2" 0" ❄️ Dormant
Apr 6.5" 1.9" 4.6" 🚿 Regular watering
May 6.5" 1.3" 5.2" 🚿 Regular watering
Jun 6.5" 2.1" 4.4" 🚿 Regular watering
Jul 6.5" 10.9" 0" ✅ Rainfall sufficient
Aug 6.5" 11.1" 0" ✅ Rainfall sufficient
Sep 6.5" 8.3" 0" ✅ Rainfall sufficient
Oct 6.5" 4.5" 2" 💧 Light watering
Nov 3.1" 0" ❄️ Dormant
Dec 3.3" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Donley County). 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 ~1,500 GDD — county provides 5,175 GDD Excellent fit

Cucumber Planting Timeline — Donley County, TX

Cucumber Planting Calendar

Activity When Date Range
Start Indoors March 10 Mar 10 – Mar 24
Transplant Outdoors April 21 Apr 21 – May 5
Direct Sow April 14 Apr 14 – May 5
Harvest June 16 Jun 16 – Aug 11

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
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 7b

📆 Growing Season

207 days in Donley County

Growing Tips for Cucumber in Donley County

Direct sow Cucumber outdoors after April 07 in Donley County when soil has warmed and frost danger has passed.

Sandy soil in Donley County dries quickly — mulch Cucumber with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 100°F in Donley County, provide afternoon shade for Cucumber and water deeply in the morning.

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 Donley County, TX?

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

What planting zone is Donley County, TX?

Donley County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is April 7 and first fall frost is October 31.

🌱

Your Donley County Garden Planner — Free

A 24-page printable planner built for Donley County (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 Donley County, TX. 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.