When to Plant Pumpkin in Dukes County, MA
May in the garden — Dukes County, Massachusetts
A quick May briefing for Dukes County, Massachusetts gardeners — what's urgent, what's next, and what can wait.
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Plant out pumpkin
Pinch off the lowest leaves on each seedling before you plant — it reduces water loss while the roots catch up.
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Seed pumpkin outdoors
Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.
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Start pumpkin indoors
Starting these indoors now means sturdy transplants ready the moment your soil warms up.
Pumpkins are large-fruited squash varieties grown for eating, decoration, and seed production. They require ample space and a long, warm growing season.
Dukes County, Massachusetts is in USDA Zone 7b. The average last spring frost is April 25 and the first fall frost is October 19, giving you a growing season of approximately 177 days.
At an elevation of 676 feet, Dukes County receives approximately 48.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Pumpkin during the growing season.
Dukes County Soil Profile
Soil Type
Silt Loam
Soil pH
5.2-6.5
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 Dukes County
How your county's soil matches Pumpkin's growing requirements.
Soil pH
Your soil pH (5.2–6.5) is more acidic than Pumpkin prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Dukes County is excellent for Pumpkin — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Pumpkin.
Organic Matter
Organic matter is moderate (3.8%). Annual compost additions will help Pumpkin.
How to Plant Pumpkin
Plant Water Budget
Monthly Watering Guide for Pumpkin
Pumpkin needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.
| Month | Pumpkin Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 3.7" | 0" | ❄️ Dormant |
| Feb | — | 2.8" | 0" | ❄️ Dormant |
| Mar | — | 3.4" | 0" | ❄️ Dormant |
| Apr | 5.6" | 4.5" | 1.1" | 💧 Light watering |
| May | 5.6" | 4.5" | 1.1" | 💧 Light watering |
| Jun | 5.6" | 4.2" | 1.4" | 💧 Light watering |
| Jul | 5.6" | 4.8" | 0.8" | 💧 Light watering |
| Aug | 5.6" | 4.8" | 0.8" | 💧 Light watering |
| Sep | 5.6" | 4.4" | 1.2" | 💧 Light watering |
| Oct | 5.6" | 4.1" | 1.5" | 💧 Light watering |
| Nov | — | 3.5" | 0" | ❄️ Dormant |
| Dec | — | 3.5" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Dukes County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Pumpkin 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.
Pumpkin Planting Timeline — Dukes County, MA
Pumpkin 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 | August 8 | Aug 8 – Sep 26 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | — |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1.3"/week · Natural rainfall sufficient
📅 Days to Maturity
85–120 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 7b
📆 Growing Season
177 days in Dukes County
Growing Tips for Pumpkin in Dukes County
Direct sow Pumpkin outdoors after April 25 in Dukes County when soil has warmed and frost danger has passed.
Common pests for Pumpkin 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 on mounds after last frost. Allow 6-10 feet between plants. Slip a board under developing fruit to prevent rot. Harvest when rind is hard and deep in color.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Pumpkin in Other Locations
Frequently Asked Questions
When should I plant Pumpkin in Dukes County, MA?
Dukes County is in Zone 7b with an average last frost of April 25. Plan your Pumpkin planting based on this frost date — see the calendar above for exact timing.
What planting zone is Dukes County, MA?
Dukes County, Massachusetts is in USDA Hardiness Zone 7b. The average last spring frost is April 25 and first fall frost is October 19.
Your Dukes County Garden Planner — Free
A 24-page printable planner built for Dukes 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.