When to Plant Zucchini in Marshall County, WV
What to do in May
Your garden in Marshall County, West Virginia is working on a schedule, even when you're not. Here's where you should be this May.
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Move zucchini into the garden
Frost risk is low now in Marshall County, West Virginia. If you've been covering beds overnight, you can stop.
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Indoor seed-starting week for zucchini
Your window is short. These crops want several weeks of indoor growth before they go outside.
Looking ahead to 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.
Marshall County, West Virginia is in USDA Zone 6b. The average last spring frost is April 23 and the first fall frost is October 20, giving you a growing season of approximately 180 days.
At an elevation of 1,430 feet, Marshall County receives approximately 51.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Zucchini during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Zucchini root diseases.
Marshall County Soil Profile
Soil Type
Silt Loam
Soil pH
5.7-6.9
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 Marshall County
How your county's soil matches Zucchini's growing requirements.
Soil pH
Your soil pH (5.7–6.9) overlaps with Zucchini's range (6.0–7.5), though not a perfect match.
Soil Texture
The silt loam soil in Marshall County is excellent for Zucchini — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.9%). Annual compost additions will help Zucchini.
How to Plant Zucchini
Succession Planting Zucchini
Sow every 5.1 weeks. Last sowing by Aug 21 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 | — | 4.8" | 0" | ❄️ Dormant |
| Feb | — | 3.7" | 0" | ❄️ Dormant |
| Mar | — | 4.2" | 0" | ❄️ Dormant |
| Apr | 5.2" | 3.7" | 1.5" | 💧 Light watering |
| May | 5.2" | 4" | 1.2" | 💧 Light watering |
| Jun | 5.2" | 5.1" | 0.1" | 💧 Light watering |
| Jul | 5.2" | 4.9" | 0.3" | 💧 Light watering |
| Aug | 5.2" | 4.5" | 0.7" | 💧 Light watering |
| Sep | 5.2" | 4.4" | 0.8" | 💧 Light watering |
| Oct | 5.2" | 3.6" | 1.6" | 💧 Light watering |
| Nov | — | 4.2" | 0" | ❄️ Dormant |
| Dec | — | 4.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Marshall 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 — Marshall County, WV
Zucchini Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 19 | Mar 19 – Apr 2 |
| Transplant Outdoors | May 7 | May 7 – May 21 |
| Direct Sow | April 30 | Apr 30 – May 21 |
| Harvest | June 25 | Jun 25 – Aug 20 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors 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
1.2"/week · Natural rainfall sufficient
📅 Days to Maturity
45–60 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 6b
📆 Growing Season
180 days in Marshall County
Growing Tips for Zucchini in Marshall County
Direct sow Zucchini outdoors after April 23 in Marshall County when soil has warmed and frost danger has passed.
Your generous 180.0-day season in Marshall 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 Marshall County, WV?
Marshall County is in Zone 6b with an average last frost of April 23. Plan your Zucchini planting based on this frost date — see the calendar above for exact timing.
What planting zone is Marshall County, WV?
Marshall County, West Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 23 and first fall frost is October 20.
Your Marshall County Garden Planner — Free
A 24-page printable planner built for Marshall 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.