FrostCal

When to Plant Brussels Sprouts in Pennsylvania

In a typical Pennsylvania location, start seeds indoors Mar 2 – Mar 16, then transplant outdoors Mar 30 – Apr 13. Across the state, the outdoor planting window starts as early as Mar 9 in Philadelphia and as late as Apr 24 in Hermitage.

Method Start indoors, then transplant
Days to maturity 90–110 days

Long-season crop best timed to mature after a light fall frost for sweetest flavor; start indoors 5-7 weeks before last frost.

Brussels Sprouts Planting Dates by City

CityStart indoorsTransplant
PhiladelphiaFeb 9 – Feb 23Mar 9 – Mar 23
PittsburghMar 6 – Mar 20Apr 3 – Apr 17
AllentownMar 2 – Mar 16Mar 30 – Apr 13
ErieMar 8 – Mar 22Apr 5 – Apr 19
ReadingFeb 24 – Mar 10Mar 24 – Apr 7
ScrantonMar 5 – Mar 19Apr 2 – Apr 16
BethlehemMar 2 – Mar 16Mar 30 – Apr 13
BensalemMar 3 – Mar 17Mar 31 – Apr 14
LancasterMar 1 – Mar 15Mar 29 – Apr 12
AbingtonFeb 21 – Mar 7Mar 21 – Apr 4
LevittownMar 3 – Mar 17Mar 31 – Apr 14
HavertownFeb 9 – Feb 23Mar 9 – Mar 23
HarrisburgFeb 25 – Mar 11Mar 25 – Apr 8
AltoonaMar 7 – Mar 21Apr 4 – Apr 18
YorkMar 8 – Mar 22Apr 5 – Apr 19
State CollegeMar 2 – Mar 16Mar 30 – Apr 13
Wilkes-BarreMar 5 – Mar 19Apr 2 – Apr 16
NorristownFeb 18 – Mar 4Mar 18 – Apr 1
ChesterFeb 9 – Feb 23Mar 9 – Mar 23
Mount LebanonFeb 28 – Mar 14Mar 28 – Apr 11
Bethel ParkFeb 28 – Mar 14Mar 28 – Apr 11
WayneFeb 18 – Mar 4Mar 18 – Apr 1
RadnorFeb 18 – Mar 4Mar 18 – Apr 1
WilliamsportMar 7 – Mar 21Apr 4 – Apr 18
MonroevilleMar 4 – Mar 18Apr 1 – Apr 15
Cranberry TownshipFeb 18 – Mar 4Mar 18 – Apr 1
Drexel HillFeb 12 – Feb 26Mar 12 – Mar 26
PlumFeb 26 – Mar 12Mar 26 – Apr 9
Back MountainMar 5 – Mar 19Apr 2 – Apr 16
EastonFeb 28 – Mar 14Mar 28 – Apr 11

Showing the 30 most populous of 121 Pennsylvania cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Pennsylvania cities.

Frequently Asked Questions

When should I plant Brussels sprouts in Pennsylvania?

In a typical Pennsylvania location, start seeds indoors Mar 2 – Mar 16, then transplant outdoors Mar 30 – Apr 13. Across the state, the outdoor planting window starts as early as Mar 9 in Philadelphia and as late as Apr 24 in Hermitage.

When is the last frost in Pennsylvania?

The average last spring frost in Pennsylvania ranges from March 30 in Philadelphia to May 15 in Hermitage, based on NOAA 1991–2020 climate normals.

How long do Brussels sprouts take to grow?

Brussels Sprouts typically take 90–110 days from planting to harvest. Long-season crop best timed to mature after a light fall frost for sweetest flavor; start indoors 5-7 weeks before last frost.

Other Crops in Pennsylvania

When to plant Brussels sprouts in other states

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