When to Plant Zucchini in McCurtain County, OK
May to-do list for McCurtain County, Oklahoma
Welcome to May in Zone 8a. These are the moves that will have the biggest impact on your growing season.
A few tasks this May that'll pay off in June
- First harvests: zucchini
Zucchini is an incredibly prolific summer squash that can produce an abundance of fruit from just a few plants. It is versatile in the kitchen from grilling to baking.
McCurtain County, Oklahoma is in USDA Zone 8a. The average last spring frost is April 2 and the first fall frost is November 3, giving you a growing season of approximately 215 days.
At an elevation of 468 feet, McCurtain County receives approximately 28.6 inches of rainfall annually with predominantly loam soil. Summer highs average 90°F, providing good warmth for Zucchini during the growing season.
McCurtain County Soil Profile
Soil Type
Loam
Soil pH
6.7-7.2
Drainage
Well Drained
Plant Planting Risk Windows
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 McCurtain County
How your county's soil matches Zucchini's growing requirements.
Soil pH
Your soil pH (6.7–7.2) is within Zucchini's preferred range (6.0–7.5).
Soil Texture
The loam soil in McCurtain County is excellent for Zucchini — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Zucchini.
Organic Matter
Organic matter is excellent (4.2%) — Zucchini will thrive.
How to Plant Zucchini
Succession Planting Zucchini
Sow every 5.1 weeks. Last sowing by Sep 04 to harvest before frost.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Zucchini
Zucchini needs approximately 1.2 inches of water per week (5.2" per month). Here's how your county's rainfall compares month by month.
| Month | Zucchini Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 0.8" | 0" | ❄️ Dormant |
| Feb | — | 1" | 0" | ❄️ Dormant |
| Mar | — | 1.7" | 0" | ❄️ Dormant |
| Apr | 5.2" | 2.8" | 2.4" | 💧 Light watering |
| May | 5.2" | 3.9" | 1.3" | 💧 Light watering |
| Jun | 5.2" | 5.2" | 0" | ✅ Rainfall sufficient |
| Jul | 5.2" | 3.7" | 1.5" | 💧 Light watering |
| Aug | 5.2" | 3.1" | 2.1" | 💧 Light watering |
| Sep | 5.2" | 2.5" | 2.7" | 🚿 Regular watering |
| Oct | 5.2" | 2.1" | 3.1" | 🚿 Regular watering |
| Nov | 5.2" | 1" | 4.2" | 🚿 Regular watering |
| Dec | — | 0.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Nov in McCurtain County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Zucchini 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.
Zucchini Planting Timeline — McCurtain County, OK
Zucchini Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 5 | Mar 5 – Mar 19 |
| Transplant Outdoors | April 16 | Apr 16 – Apr 30 |
| Direct Sow | April 9 | Apr 9 – Apr 30 |
| Harvest | June 4 | Jun 4 – Jul 30 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1.2"/week · 2-3 times/week
📅 Days to Maturity
45–60 days
🧪 Soil pH
Needs 6–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 8a
📆 Growing Season
215 days in McCurtain County
Growing Tips for Zucchini in McCurtain County
Direct sow Zucchini outdoors after April 02 in McCurtain County when soil has warmed and frost danger has passed.
Your generous 215.0-day season in McCurtain County allows multiple plantings of Zucchini. Sow every 22.0 days for continuous harvest.
Common pests for Zucchini 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. Harvest when fruits are 6-8 inches long for best flavor and texture. Check plants daily in summer as fruits can double in size overnight.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Zucchini in Other Locations
Frequently Asked Questions
When should I plant Zucchini in McCurtain County, OK?
McCurtain County is in Zone 8a with an average last frost of April 2. Plan your Zucchini planting based on this frost date — see the calendar above for exact timing.
What planting zone is McCurtain County, OK?
McCurtain County, Oklahoma is in USDA Hardiness Zone 8a. The average last spring frost is April 2 and first fall frost is November 3.
Your McCurtain County Garden Planner — Free
A 24-page printable planner built for McCurtain 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.