When to Plant Peppers in Montana

In a typical Montana location, start seeds indoors Mar 5 – Mar 19, then transplant outdoors May 21 – Jun 4. Across the state, the outdoor planting window starts as early as May 12 in Laurel and as late as Jun 20 in Butte.

Method Start indoors, then transplant
Days to maturity 60–90 days

Slow to germinate; start indoors 8-10 weeks before last frost. Transplant only once nights stay above 55F, 1-3 weeks after last frost.

Peppers Planting Dates by City

CityStart indoorsTransplant
BillingsMar 1 – Mar 15May 17 – May 31
MissoulaMar 1 – Mar 15May 17 – May 31
Great FallsFeb 25 – Mar 11May 13 – May 27
BozemanMar 17 – Mar 31Jun 2 – Jun 16
ButteApr 4 – Apr 18Jun 20 – Jul 4
HelenaFeb 28 – Mar 14May 16 – May 30
KalispellMar 22 – Apr 5Jun 7 – Jun 21
HavreMar 6 – Mar 20May 22 – Jun 5
AnacondaMar 23 – Apr 6Jun 8 – Jun 22
Miles CityFeb 27 – Mar 13May 15 – May 29
Helena Valley SoutheastFeb 28 – Mar 14May 16 – May 30
BelgradeMar 17 – Mar 31Jun 2 – Jun 16
Helena Valley West CentralFeb 28 – Mar 14May 16 – May 30
EvergreenMar 22 – Apr 5Jun 7 – Jun 21
LivingstonMar 18 – Apr 1Jun 3 – Jun 17
WhitefishMar 7 – Mar 21May 23 – Jun 6
LaurelFeb 24 – Mar 10May 12 – May 26
SidneyMar 2 – Mar 16May 18 – Jun 1
LockwoodMar 1 – Mar 15May 17 – May 31
LewistownMar 5 – Mar 19May 21 – Jun 4

Showing the 20 most populous of 20 Montana cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Montana cities.

Frequently Asked Questions

When should I plant peppers in Montana?

In a typical Montana location, start seeds indoors Mar 5 – Mar 19, then transplant outdoors May 21 – Jun 4. Across the state, the outdoor planting window starts as early as May 12 in Laurel and as late as Jun 20 in Butte.

When is the last frost in Montana?

The average last spring frost in Montana ranges from May 5 in Laurel to June 13 in Butte, based on NOAA 1991–2020 climate normals.

How long do peppers take to grow?

Peppers typically take 60–90 days from planting to harvest. Slow to germinate; start indoors 8-10 weeks before last frost. Transplant only once nights stay above 55F, 1-3 weeks after last frost.

Other Crops in Montana

When to plant peppers in other states

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