When to Plant Peppers in Maine
From sweet bells to fiery habaneros, peppers love heat and reward patience with prolific harvests.
The Short Answer
Maine Frost Dates
Your planting dates depend on which part of Maine you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Northern Maine | 3b, 4a, 4b | May 20 - Jun 5 | Sep 10 - Sep 25 |
| Central Maine | 4b, 5a | May 10 - May 25 | Sep 20 - Oct 5 |
| Southern/Coastal Maine | 5a, 5b, 6a | May 1 - May 15 | Sep 25 - Oct 15 |
Peppers Planting Schedule for Maine
Northern Maine (Zones 3b, 4a, 4b)
Average last frost: May 20 - Jun 5 · Average first frost: Sep 10 - Sep 25
Central Maine (Zones 4b, 5a)
Average last frost: May 10 - May 25 · Average first frost: Sep 20 - Oct 5
Southern/Coastal Maine (Zones 5a, 5b, 6a)
Average last frost: May 1 - May 15 · Average first frost: Sep 25 - Oct 15
Growing Peppers in Maine
Peppers in Maine's Climate
Peppers need even more heat than tomatoes, making them one of the most challenging warm-season crops in cold climates. Start seeds indoors 8-10 weeks before your last frost and don't transplant until nighttime temperatures are consistently above 60°F. Choose fast-maturing varieties like Early Jalapeño (60 days) and King of the North (68 days). Wall-o-Water season extenders and black plastic mulch are game-changers for cold-climate pepper growers.
Soil Considerations for Maine
Acidic, rocky soils. Blueberries thrive naturally. Raised beds common to deal with rocks. Amendment with lime needed for many vegetables. Make sure soil has warmed to at least 65°F before planting peppers outside.
Maine Climate & Growing Season
Short growing season but long summer days help. Maritime influence on coast. Season extension techniques very valuable. Peppers cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.
Growing season length varies across Maine: Northern Maine (3b, 4a, 4b) has a last frost around May 20 - Jun 5, while Southern/Coastal Maine (5a, 5b, 6a) sees frost end around May 1 - May 15. This difference matters for peppers — transplant timing shifts by several weeks across the state.
Growing Tips
Start seeds early — peppers are slow to germinate. Wait until nights are consistently above 55°F before transplanting.
Companion Planting
Plant peppers alongside these companions for better growth:
Keep peppers away from:
The Bottom Line
Last reviewed: March 29, 2026