When to Plant Butternut Squash in Zone 9
Cucurbita moschata
Last updated: Apr 25, 2026 · Sources: USDA, NOAA, Cooperative ExtensionZone 9 Planting Schedule
Start Indoors
Feb 21
6–8 weeks before transplant
Transplant Out
Mar 21
After last frost (Feb 28)
Direct Sow
Mar 21
Directly in garden bed
First Harvest
Jun 21
85–110 days after planting
Season Ends
Aug 15
Before first frost (Nov 25)
Quick Facts
Sunlight
☀️ Full Sun
Water Needs
💧💧 Moderate
Spacing
48 inches apart
Planting Depth
1.0 inch
Min Soil Temp
65°F
Germination
5–10 days
Days to Maturity
85–110 days
Frost Tolerance
No frost tolerance
Soil pH
6.0–6.8
Difficulty
Moderate
Recommended for Zone 9
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Butternut Squash Schedule — All Zones
| Zone | Start Indoors | Transplant | Direct Sow | Harvest Start | Harvest End |
|---|---|---|---|---|---|
| Zone 3 | May 8 | Jun 5 | Jun 5 | Sep 5 | Sep 12 |
| Zone 4 | May 3 | May 31 | May 31 | Aug 31 | Sep 22 |
| Zone 5 | Apr 23 | May 21 | May 21 | Aug 21 | Oct 2 |
| Zone 6 | Apr 8 | May 6 | May 6 | Aug 6 | Sep 30 |
| Zone 7 | Mar 29 | Apr 26 | Apr 26 | Jul 27 | Sep 20 |
| Zone 8 | Mar 13 | Apr 10 | Apr 10 | Jul 11 | Sep 4 |
| Zone 9 | Feb 21 | Mar 21 | Mar 21 | Jun 21 | Aug 15 |
| Zone 10 | Feb 3 | Mar 3 | Mar 3 | Jun 3 | Jul 28 |
📚 Data Sources
Frost dates: NOAA Climate Normals 1991–2020, National Centers for Environmental Information.Hardiness zones: USDA Plant Hardiness Zone Map, Agricultural Research Service.
Growing requirements: Cooperative Extension Services — NC State, Penn State, University of Florida IFAS.
Companion planting: Cornell University Cooperative Extension.
Data compiled from public agricultural sources. Always verify with your local extension office for micro-climate adjustments.