When to Plant Peppers in Utah
From sweet bells to fiery habaneros, peppers love heat and reward patience with prolific harvests.
The Short Answer
Utah Frost Dates
Your planting dates depend on which part of Utah you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Wasatch Front (SLC) | 6a, 6b, 7a | Apr 20 - May 10 | Oct 1 - Oct 20 |
| Mountain Regions | 4a, 4b, 5a | May 25 - Jun 15 | Aug 25 - Sep 15 |
| Southern Utah | 6b, 7a, 7b | Apr 10 - May 1 | Oct 10 - Nov 1 |
Peppers Planting Schedule for Utah
Wasatch Front (SLC) (Zones 6a, 6b, 7a)
Average last frost: Apr 20 - May 10 · Average first frost: Oct 1 - Oct 20
Mountain Regions (Zones 4a, 4b, 5a)
Average last frost: May 25 - Jun 15 · Average first frost: Aug 25 - Sep 15
Southern Utah (Zones 6b, 7a, 7b)
Average last frost: Apr 10 - May 1 · Average first frost: Oct 10 - Nov 1
Growing Peppers in Utah
Peppers in Utah's Climate
Peppers are stars in warm climates — they thrive in the same heat that stresses other crops. Your long season supports even the longest-maturing hot varieties including habaneros, ghost peppers, and superhots. Peppers produce more prolifically with warm nights, giving southern growers a natural advantage. In the hottest zones, afternoon shade helps during peak summer but isn't strictly necessary — peppers handle heat better than tomatoes.
Soil Considerations for Utah
Alkaline desert soils. Low organic matter. Saline soils in some areas. Heavy amendment with compost and sulfur needed. Make sure soil has warmed to at least 65°F before planting peppers outside.
Utah Climate & Growing Season
Arid climate. Intense sun. Low humidity. Wide temperature swings. Irrigation essential everywhere. 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 Utah: Wasatch Front (SLC) (6a, 6b, 7a) has a last frost around Apr 20 - May 10, while Southern Utah (6b, 7a, 7b) sees frost end around Apr 10 - May 1. 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