When to Plant Butternut Squash in USDA Zone 7b
Top priorities for Zone 7b gardeners in April
We've pulled the most time-sensitive tasks for Zone 7b this April and put them front and centre. Tackle them in order.
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Transplant butternut squash outside
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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Seed butternut squash outdoors
Sow every 2 weeks for a continuous harvest. A single big planting means a single big glut.
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Start butternut squash indoors
Starting these indoors now means sturdy transplants ready the moment your soil warms up.
Butternut squash is a popular winter squash with a long neck, small seed cavity, and sweet, nutty orange flesh. It stores exceptionally well for months.
In Zone 7b, the average last spring frost is around March 18 and the first fall frost is around November 8, giving you a growing season of approximately 235 days.
Butternut Squash Planting Timeline — Zone 7b
Where Is USDA Zone 7b?
The map below highlights the states that contain Zone 7b. Click any state to see the Butternut Squash planting schedule for that location.
Butternut Squash Planting Calendar — Zone 7b
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 18 | Feb 18 – Mar 4 |
| Transplant Outdoors | April 1 | Apr 1 – Apr 15 |
| Direct Sow | March 25 | Mar 25 – Apr 15 |
| Harvest | July 1 | Jul 1 – Aug 5 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | — |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Free Zone 7b Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 7b with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
Days to Maturity
85–110 days
Soil pH
6 – 7
Zone Temperature Range
°F to °F average annual minimum
Growing Season
235 days (Zone average)
Planting Specifications
| Planting Depth | 1 inches |
| Plant Spacing | 30 inches apart |
| Row Spacing | 42 inches between rows |
Growing Tips for Butternut Squash in Zone
Zone has a short growing season (~235 days). Start Butternut Squash indoors early and use season-extension techniques like row covers and cold frames.
Start seeds indoors 3 weeks early or direct sow after frost. Allow 6-8 feet for sprawling vines. Harvest when the skin is hard and uniformly tan. Cure in the sun for 10 days.
Companion Planting
Good Companions
Avoid Planting Near
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Saving Butternut Squash Seeds
Recommended for Your Garden
Start seeds indoors with reusable cell trays and humidity domes.
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Keep your garden organized with durable, weather-resistant plant labels.
Related Plants
Butternut Squash in Other Zones
Butternut Squash by State
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
When should I plant Butternut Squash in Zone 7b?
In Zone 7b, plan your Butternut Squash planting around the average last frost date of March 18. Start seeds indoors around February 18. Direct sow outdoors around March 25. Transplant seedlings around April 1.
Can Butternut Squash grow in Zone 7b?
Yes, Butternut Squash can grow well in Zone 7b, hardy in USDA zones 3a through 11b. Zone 7b has a growing season of approximately 235 days, which is sufficient for Butternut Squash (85-110 days to maturity).
When can I harvest Butternut Squash in Zone 7b?
In Zone 7b, expect to harvest Butternut Squash from July 1 – August 5. Butternut Squash takes 85-110 days from planting to harvest.
What is the last frost date for Zone 7b?
The average last spring frost in Zone 7b is around March 18, and the first fall frost is around November 8. This gives a growing season of approximately 235 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Butternut Squash?
Good companion plants for Butternut Squash include Corn, Green Beans, Radish. These companions can help with pest control, pollination, and nutrient sharing.
Your Free Printable Garden Planner
A 24-page printable planner tailored to your zone. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.