When to Plant Pumpkin in Valdez-Cordova, AK
Your May game plan for Valdez-Cordova, Alaska
Each item below is timed to Valdez-Cordova, Alaska's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Plant out pumpkin
Plant tomatoes deep — bury the stem up to the first true leaves to grow extra roots. Everything else goes in at the same depth it grew in the tray.
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Outdoor sowing time: pumpkin
Sow every 2 weeks for a continuous harvest. A single big planting means a single big glut.
Coming up in June — start thinking about
- Starting indoors: pumpkin
Pumpkins are large-fruited squash varieties grown for eating, decoration, and seed production. They require ample space and a long, warm growing season.
Valdez-Cordova, Alaska is in USDA Zone 5b. The average last spring frost is May 12 and the first fall frost is October 5, giving you a growing season of approximately 146 days.
At an elevation of 2,888 feet, Valdez-Cordova receives approximately 38.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 66°F, so choose short-season varieties of Pumpkin to ensure they mature before fall.
Valdez-Cordova Soil Profile
Soil Type
Silt Loam
Soil pH
5-6.8
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 Valdez-Cordova
How your county's soil matches Pumpkin's growing requirements.
Soil pH
Your soil pH (5.0–6.8) is more acidic than Pumpkin prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Valdez-Cordova is excellent for Pumpkin — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Pumpkin.
Organic Matter
Organic matter is excellent (6.2%) — Pumpkin will thrive.
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 | — | 1.9" | 0" | ❄️ Dormant |
| Feb | — | 1.8" | 0" | ❄️ Dormant |
| Mar | — | 1.5" | 0" | ❄️ Dormant |
| Apr | — | 1.2" | 0" | ❄️ Dormant |
| May | 5.6" | 1.5" | 4.1" | 🚿 Regular watering |
| Jun | 5.6" | 2.9" | 2.7" | 💧 Light watering |
| Jul | 5.6" | 5.3" | 0.3" | 💧 Light watering |
| Aug | 5.6" | 5.5" | 0.1" | 💧 Light watering |
| Sep | 5.6" | 6" | 0" | ✅ Rainfall sufficient |
| Oct | 5.6" | 5.3" | 0.3" | 💧 Light watering |
| Nov | — | 2.9" | 0" | ❄️ Dormant |
| Dec | — | 2.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Valdez-Cordova). 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 — Valdez-Cordova, AK
Pumpkin Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 7 | Apr 7 – Apr 21 |
| Transplant Outdoors | May 26 | May 26 – Jun 9 |
| Direct Sow | May 19 | May 19 – Jun 9 |
| Harvest | August 25 | Aug 25 – Oct 13 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | Transplant Outdoors Direct Sow |
| July | — |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| 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 5b
📆 Growing Season
146 days in Valdez-Cordova
Growing Tips for Pumpkin in Valdez-Cordova
Direct sow Pumpkin outdoors after May 12 in Valdez-Cordova 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 Valdez-Cordova, AK?
Valdez-Cordova is in Zone 5b with an average last frost of May 12. Plan your Pumpkin planting based on this frost date — see the calendar above for exact timing.
What planting zone is Valdez-Cordova, AK?
Valdez-Cordova, Alaska is in USDA Hardiness Zone 5b. The average last spring frost is May 12 and first fall frost is October 5.
Your Valdez-Cordova Garden Planner — Free
A 24-page printable planner built for Valdez-Cordova (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.